Table of Washington ZIP Codes with list of cities and counties and population for each ZIP Code.| ZIP | City | County | Population |
|---|
| 98001 | Algona city, Auburn city, Federal Way city, Lakeland North CDP, Lakeland South CDP, Milton city, Pacific city | King County | 35,297 |
| 98002 | Auburn city, Kent city, Pacific city | King County | 35,915 |
| 98003 | Federal Way city, Lakeland South CDP, Milton city | King County | 50,501 |
| 98004 | Beaux Arts Village town, Bellevue city, Clyde Hill city, Hunts Point town, Yarrow Point town | King County | 38,632 |
| 98005 | Bellevue city | King County | 21,603 |
| 98006 | Bellevue city, Newcastle city | King County | 39,595 |
| 98007 | Bellevue city, Redmond city | King County | 28,576 |
| 98008 | Bellevue city, Redmond city | King County | 26,091 |
| 98010 | Black Diamond city, Lake Morton-Berrydale CDP, Maple Valley city | King County | 5,963 |
| 98011 | Bothell city, Kenmore city, Woodinville city | King County | 27,396 |
| 98012 | Bothell city, Bothell East CDP, Bothell West CDP, Clearview CDP, Martha Lake CDP, Mill Creek city, Mill Creek East CDP, Silver Firs CDP | Snohomish County | 75,045 |
| 98014 | Ames Lake CDP, Carnation city, Lake Marcel-Stillwater CDP, Union Hill-Novelty Hill CDP | King County | 7,736 |
| 98019 | Cottage Lake CDP, Duvall city, Union Hill-Novelty Hill CDP | King County | 11,290 |
| 98020 | Edmonds city, Esperance CDP, Woodway city | Snohomish County | 18,594 |
| 98021 | Bothell city, Bothell East CDP, Bothell West CDP, Maltby CDP | King County, Snohomish County | 34,359 |
| 98022 | Black Diamond city, Enumclaw city, Greenwater CDP | King County, Kittitas County, Pierce County, Yakima County | 22,007 |
| 98023 | Des Moines city, Federal Way city | King County | 51,811 |
| 98024 | Fall City CDP, Sammamish city, Snoqualmie city | King County | 5,503 |
| 98025 | | King County | 0 |
| 98026 | Edmonds city, Esperance CDP, Lynnwood city, Meadowdale CDP, Mountlake Terrace city, Mukilteo city, North Lynnwood CDP, Picnic Point CDP | Snohomish County | 39,340 |
| 98027 | Bellevue city, East Renton Highlands CDP, Hobart CDP, Issaquah city, Mirrormont CDP | King County | 27,808 |
| 98028 | Bothell city, Kenmore city | King County, Snohomish County | 23,556 |
| 98029 | Issaquah city, Sammamish city | King County | 31,480 |
| 98030 | Auburn city, Kent city | King County | 39,526 |
| 98031 | Kent city, Renton city | King County | 41,464 |
| 98032 | Federal Way city, Kent city, Lakeland North CDP, Renton city, SeaTac city, Tukwila city | King County | 38,985 |
| 98033 | Bellevue city, Kirkland city, Redmond city | King County | 39,726 |
| 98034 | Bothell city, Kenmore city, Kirkland city, Redmond city, Woodinville city | King County | 52,841 |
| 98036 | Alderwood Manor CDP, Bothell West CDP, Brier city, Lynnwood city, Martha Lake CDP, Mountlake Terrace city, North Lynnwood CDP | Snohomish County | 41,132 |
| 98037 | Alderwood Manor CDP, Edmonds city, Larch Way CDP, Lynnwood city, Martha Lake CDP, Meadowdale CDP, North Lynnwood CDP | Snohomish County | 28,938 |
| 98038 | Covington city, East Renton Highlands CDP, Hobart CDP, Kent city, Lake Morton-Berrydale CDP, Maple Valley city, Mirrormont CDP, Ravensdale CDP, Shadow Lake CDP | King County | 37,624 |
| 98039 | Bellevue city, Hunts Point town, Kirkland city, Medina city, Yarrow Point town | King County | 2,928 |
| 98040 | Mercer Island city | King County | 25,506 |
| 98042 | Auburn city, Covington city, Kent city, Lake Morton-Berrydale CDP, Maple Valley city, Shadow Lake CDP | King County | 48,639 |
| 98043 | Edmonds city, Lynnwood city, Mountlake Terrace city | King County, Snohomish County | 21,265 |
| 98045 | North Bend city, Riverbend CDP, Riverpoint CDP, Snoqualmie city, Wilderness Rim CDP | King County, Kittitas County | 15,611 |
| 98047 | Algona city, Lakeland South CDP, Pacific city, Sumner city | King County, Pierce County | 7,024 |
| 98050 | | King County | 0 |
| 98051 | Hobart CDP, Kent city, Ravensdale CDP | King County | 4,272 |
| 98052 | Bellevue city, Cottage Lake CDP, Kirkland city, Redmond city, Union Hill-Novelty Hill CDP, Woodinville city | King County | 75,765 |
| 98053 | Ames Lake CDP, Redmond city, Union Hill-Novelty Hill CDP | King County | 22,857 |
| 98055 | Kent city, Renton city | King County | 24,668 |
| 98056 | Newcastle city, Renton city | King County | 36,950 |
| 98057 | Bryn Mawr-Skyway CDP, Renton city, Tukwila city | King County | 12,351 |
| 98058 | East Renton Highlands CDP, Fairwood CDP, Kent city, Maple Heights-Lake Desire CDP, Renton city, Shadow Lake CDP | King County | 42,366 |
| 98059 | Bellevue city, East Renton Highlands CDP, Newcastle city, Renton city | King County | 41,076 |
| 98065 | Snoqualmie city | King County | 15,779 |
| 98068 | Roslyn city, Snoqualmie Pass CDP | King County, Kittitas County | 551 |
| 98070 | Vashon CDP | King County | 10,886 |
| 98072 | Bothell city, Clearview CDP, Cottage Lake CDP, Kirkland city, Maltby CDP, Woodinville city | King County, Snohomish County | 24,931 |
| 98074 | Sammamish city | King County | 30,370 |
| 98075 | Sammamish city | King County | 25,762 |
| 98077 | Cottage Lake CDP, Maltby CDP, Union Hill-Novelty Hill CDP | King County, Snohomish County | 13,862 |
| 98087 | Lake Stickney CDP, Larch Way CDP, Lynnwood city, Martha Lake CDP, North Lynnwood CDP, Picnic Point CDP | Snohomish County | 41,958 |
| 98092 | Auburn city, Black Diamond city, Kent city, Lake Holm CDP, Lake Morton-Berrydale CDP, Lake Tapps CDP, Sumner city | King County, Pierce County | 50,845 |
| 98101 | Seattle city | King County | 14,528 |
| 98102 | Seattle city | King County | 25,396 |
| 98103 | Seattle city | King County | 52,210 |
| 98104 | Seattle city | King County | 14,469 |
| 98105 | Seattle city | King County | 49,448 |
| 98106 | Seattle city, White Center CDP | King County | 27,489 |
| 98107 | Seattle city | King County | 27,116 |
| 98108 | Boulevard Park CDP, Seattle city, Tukwila city, White Center CDP | King County | 23,759 |
| 98109 | Seattle city | King County | 29,376 |
| 98110 | Bainbridge Island city | Kitsap County | 24,557 |
| 98112 | Seattle city | King County | 24,412 |
| 98115 | Seattle city | King County | 53,729 |
| 98116 | Seattle city | King County | 27,190 |
| 98117 | Seattle city | King County | 36,365 |
| 98118 | Seattle city | King County | 48,937 |
| 98119 | Seattle city | King County | 26,094 |
| 98121 | Seattle city | King County | 21,010 |
| 98122 | Seattle city | King County | 41,541 |
| 98125 | Seattle city | King County | 43,386 |
| 98126 | Seattle city, White Center CDP | King County | 22,030 |
| 98133 | Seattle city, Shoreline city | King County | 50,153 |
| 98134 | Seattle city | King County | 808 |
| 98136 | Seattle city | King County | 17,245 |
| 98144 | Seattle city | King County | 31,648 |
| 98146 | Burien city, Seattle city, White Center CDP | King County | 27,879 |
| 98148 | Burien city, Des Moines city, Normandy Park city, SeaTac city | King County | 11,068 |
| 98154 | Seattle city | King County | 0 |
| 98155 | Kenmore city, Lake Forest Park city, Seattle city, Shoreline city | King County | 36,081 |
| 98158 | SeaTac city | King County | 0 |
| 98164 | Seattle city | King County | 250 |
| 98166 | Burien city, Normandy Park city | King County | 22,599 |
| 98168 | Boulevard Park CDP, Burien city, SeaTac city, Tukwila city, White Center CDP | King County | 34,614 |
| 98174 | Seattle city | King County | 0 |
| 98177 | Seattle city, Shoreline city | King County | 20,561 |
| 98178 | Bryn Mawr-Skyway CDP, Renton city, Seattle city, Tukwila city | King County | 26,282 |
| 98188 | Kent city, Renton city, SeaTac city, Tukwila city | King County | 27,524 |
| 98195 | Seattle city | King County | 2,259 |
| 98198 | Des Moines city, Kent city, Normandy Park city, SeaTac city | King County | 38,919 |
| 98199 | Seattle city | King County | 22,890 |
| 98201 | Everett city, Hat Island CDP, Marysville city | Snohomish County | 30,669 |
| 98203 | Everett city | Snohomish County | 36,164 |
| 98204 | Everett city, Lake Stickney CDP, Mukilteo city | Snohomish County | 42,496 |
| 98207 | Everett city | Snohomish County | 1,376 |
| 98208 | Eastmont CDP, Everett city, Martha Lake CDP, Mill Creek city, Silver Firs CDP | Snohomish County | 60,087 |
| 98220 | Acme CDP | Whatcom County | 578 |
| 98221 | Anacortes city | San Juan County, Skagit County | 22,707 |
| 98222 | | San Juan County | 108 |
| 98223 | Arlington city, Arlington Heights CDP, Bryant CDP, Canyon Creek CDP, Lake Cassidy CDP, Lake Goodwin CDP, Marysville city, Oso CDP, Sisco Heights CDP, Sunday Lake CDP, Swede Heaven CDP | Snohomish County | 45,253 |
| 98224 | Baring CDP | King County | 203 |
| 98225 | Bellingham city, Marietta-Alderwood CDP | Whatcom County | 50,046 |
| 98226 | Bellingham city, Ferndale city, Marietta-Alderwood CDP | Skagit County, Whatcom County | 45,373 |
| 98229 | Alger CDP, Bellingham city, Geneva CDP, Sudden Valley CDP | Skagit County, Whatcom County | 34,182 |
| 98230 | Birch Bay CDP, Blaine city | Whatcom County | 18,413 |
| 98232 | Alger CDP, Bow CDP, Edison CDP | Skagit County | 4,030 |
| 98233 | Alger CDP, Burlington city | Skagit County | 16,615 |
| 98235 | Clear Lake CDP | Skagit County | 368 |
| 98236 | Clinton CDP | Island County | 6,184 |
| 98237 | Concrete town | Skagit County, Whatcom County | 4,474 |
| 98238 | Conway CDP | Skagit County | 45 |
| 98239 | Coupeville town | Island County | 7,409 |
| 98240 | Custer CDP | Whatcom County | 3,328 |
| 98241 | Darrington town, Swede Heaven CDP | Chelan County, Skagit County, Snohomish County | 1,854 |
| 98243 | | San Juan County | 270 |
| 98244 | Deming CDP, Glacier CDP, Kendall CDP, Maple Falls CDP, Peaceful Valley CDP | Skagit County, Whatcom County | 3,244 |
| 98245 | | San Juan County | 4,122 |
| 98247 | Deming CDP, Everson city, Lynden city, Nooksack city | Whatcom County | 8,068 |
| 98248 | Birch Bay CDP, Custer CDP, Ferndale city, Marietta-Alderwood CDP | Whatcom County | 26,404 |
| 98249 | Freeland CDP | Island County | 4,229 |
| 98250 | Friday Harbor town, Roche Harbor CDP | San Juan County | 8,568 |
| 98251 | Gold Bar city, May Creek CDP, Startup CDP | Snohomish County | 4,706 |
| 98252 | Canyon Creek CDP, Granite Falls city, Lake Bosworth CDP, Lochsloy CDP, Snohomish city, Verlot CDP | Snohomish County | 10,246 |
| 98253 | | Island County | 2,275 |
| 98255 | Hamilton town | Skagit County | 262 |
| 98256 | Index town | Snohomish County | 328 |
| 98257 | La Conner town | Skagit County | 4,513 |
| 98258 | Bunk Foss CDP, Cavalero CDP, Lake Cassidy CDP, Lake Stevens city, Lochsloy CDP, Machias CDP, Sisco Heights CDP | Snohomish County | 51,374 |
| 98260 | Langley city | Island County | 5,979 |
| 98261 | | San Juan County | 3,034 |
| 98262 | | Whatcom County | 887 |
| 98263 | Lyman town | Skagit County | 196 |
| 98264 | Lynden city | Whatcom County | 22,005 |
| 98266 | Kendall CDP, Maple Falls CDP, Peaceful Valley CDP | Whatcom County | 4,373 |
| 98267 | Marblemount CDP | Chelan County, Skagit County, Whatcom County | 250 |
| 98270 | Lake Cassidy CDP, Marysville city | Snohomish County | 52,756 |
| 98271 | Lake Goodwin CDP, Marysville city, Sisco Heights CDP | Snohomish County | 29,120 |
| 98272 | Chain Lake CDP, Everett city, High Bridge CDP, Monroe city, Monroe North CDP, Sultan city, Woods Creek CDP | Snohomish County | 31,517 |
| 98273 | Bay View CDP, Clear Lake CDP, Conway CDP, Mount Vernon city | Skagit County | 30,924 |
| 98274 | Big Lake CDP, Lake Cavanaugh CDP, Lake McMurray CDP, Mount Vernon city | Skagit County | 18,052 |
| 98275 | Everett city, Mukilteo city, Picnic Point CDP | Snohomish County | 21,409 |
| 98276 | Nooksack city | Whatcom County | 1,397 |
| 98277 | Oak Harbor city, Whidbey Island Station CDP | Island County | 40,112 |
| 98278 | Whidbey Island Station CDP | Island County | 2,515 |
| 98279 | | San Juan County | 689 |
| 98280 | | San Juan County | 394 |
| 98281 | Point Roberts CDP | Whatcom County | 1,210 |
| 98282 | Camano CDP | Island County, Snohomish County | 17,235 |
| 98283 | Marblemount CDP, Rockport CDP | Skagit County, Whatcom County | 499 |
| 98284 | Alger CDP, Clear Lake CDP, Hamilton town, Lyman town, Sedro-Woolley city | Skagit County, Whatcom County | 27,159 |
| 98286 | | San Juan County | 188 |
| 98288 | Skykomish town | Chelan County, King County | 254 |
| 98290 | Bunk Foss CDP, Chain Lake CDP, Everett city, Fobes Hill CDP, Lake Bosworth CDP, Lake Roesiger CDP, Lochsloy CDP, Machias CDP, Monroe city, Monroe North CDP, Snohomish city, Three Lakes CDP, Woods Creek CDP | Snohomish County | 38,516 |
| 98292 | Kayak Point CDP, Lake Goodwin CDP, Lake Ketchum CDP, Marysville city, Northwest Stanwood CDP, Silvana CDP, Stanwood city, Sunday Lake CDP, Warm Beach CDP | Island County, Skagit County, Snohomish County | 24,141 |
| 98294 | Everett city, Gold Bar city, North Sultan CDP, Startup CDP, Sultan city | Snohomish County | 6,936 |
| 98295 | Peaceful Valley CDP, Sumas city | Whatcom County | 2,927 |
| 98296 | Cathcart CDP, Clearview CDP, Eastmont CDP, Everett city, High Bridge CDP, Maltby CDP, Mill Creek city, Mill Creek East CDP, Silver Firs CDP | Snohomish County | 27,032 |
| 98297 | | San Juan County | 59 |
| 98303 | Anderson Island CDP | Pierce County, Thurston County | 1,564 |
| 98304 | Ashford CDP | Lewis County, Pierce County, Yakima County | 1,114 |
| 98305 | | Clallam County | 298 |
| 98310 | Bremerton city, Enetai CDP, Tracyton CDP | Kitsap County | 21,635 |
| 98311 | Silverdale CDP, Tracyton CDP | Kitsap County | 27,170 |
| 98312 | Bremerton city, Chico CDP, Erlands Point CDP, Gorst CDP, Kitsap Lake CDP, Navy Yard City CDP, Port Orchard city, Rocky Point CDP, Silverdale CDP | Kitsap County, Mason County | 31,762 |
| 98314 | Bremerton city | Kitsap County | 1,773 |
| 98315 | Bangor Base CDP | Kitsap County | 6,407 |
| 98320 | Brinnon CDP | Jefferson County | 1,456 |
| 98321 | Bonney Lake city, Buckley city, Enumclaw city, Lake Tapps CDP, Prairie Heights CDP, Prairie Ridge CDP, South Prairie town, Wilkeson town | King County, Pierce County | 16,749 |
| 98323 | Carbonado town, Wilkeson town | King County, Pierce County | 644 |
| 98325 | Port Hadlock-Irondale CDP | Jefferson County | 1,737 |
| 98326 | Clallam Bay CDP | Clallam County | 931 |
| 98327 | DuPont city | Pierce County, Thurston County | 9,974 |
| 98328 | Alder CDP, Clear Lake CDP, Eatonville town, Elbe CDP, La Grande CDP | Pierce County, Thurston County | 10,505 |
| 98329 | Burley CDP, Key Center CDP, Stansberry Lake CDP, Vaughn CDP, Wauna CDP | Kitsap County, Mason County, Pierce County | 11,175 |
| 98330 | Elbe CDP | Lewis County, Pierce County | 22 |
| 98331 | Forks city, Queets CDP | Clallam County, Jefferson County | 5,951 |
| 98332 | Canterwood CDP, Gig Harbor city, Maplewood CDP, Purdy CDP, Rosedale CDP | Pierce County | 19,722 |
| 98333 | Fox Island CDP | Pierce County | 3,534 |
| 98335 | Artondale CDP, Gig Harbor city, Raft Island CDP, Rosedale CDP, Wollochet CDP | Pierce County | 28,128 |
| 98336 | | Lewis County | 693 |
| 98337 | Bremerton city | Kitsap County | 8,582 |
| 98338 | Clear Lake CDP, Elk Plain CDP, Graham CDP, Kapowsin CDP, South Creek CDP, South Hill CDP | Pierce County | 31,996 |
| 98339 | Port Hadlock-Irondale CDP | Jefferson County | 3,304 |
| 98340 | Hansville CDP | Kitsap County | 3,017 |
| 98342 | Indianola CDP | Kitsap County | 1,331 |
| 98345 | Keyport CDP | Kitsap County | 270 |
| 98346 | Hansville CDP, Indianola CDP, Kingston CDP, Port Gamble Tribal Community CDP | Kitsap County | 9,371 |
| 98349 | Herron Island CDP, Home CDP, Key Center CDP, Longbranch CDP | Pierce County | 5,272 |
| 98350 | | Clallam County | 336 |
| 98351 | Longbranch CDP | Pierce County, Thurston County | 1,375 |
| 98353 | | Kitsap County | 17 |
| 98354 | Edgewood city, Fife city, Milton city | King County, Pierce County | 8,185 |
| 98355 | Mineral CDP | Lewis County, Pierce County | 792 |
| 98356 | Mineral CDP, Morton city | Lewis County | 2,350 |
| 98357 | Neah Bay CDP | Clallam County | 1,547 |
| 98358 | Marrowstone CDP | Jefferson County | 924 |
| 98359 | Burley CDP | Kitsap County | 4,991 |
| 98360 | Clear Lake CDP, Crocker CDP, Graham CDP, Kapowsin CDP, McMillin CDP, Orting city, Prairie Ridge CDP, South Hill CDP, Tehaleh CDP | Pierce County | 14,591 |
| 98361 | Packwood CDP | Lewis County, Skamania County, Yakima County | 469 |
| 98362 | Port Angeles city, Port Angeles East CDP | Clallam County | 24,462 |
| 98363 | Port Angeles city | Clallam County | 14,245 |
| 98364 | | Kitsap County | 67 |
| 98365 | Port Ludlow CDP | Jefferson County | 4,779 |
| 98366 | Bainbridge Island city, Bethel CDP, Bremerton city, East Port Orchard CDP, Manchester CDP, Parkwood CDP, Port Orchard city, Southworth CDP | Kitsap County | 36,620 |
| 98367 | Bethel CDP, Bremerton city, Burley CDP, Gorst CDP, Port Orchard city, Southworth CDP | Kitsap County | 30,710 |
| 98368 | Port Hadlock-Irondale CDP, Port Townsend city | Jefferson County | 16,702 |
| 98370 | Bangor Base CDP, Indianola CDP, Keyport CDP, Lofall CDP, Poulsbo city, Silverdale CDP, Suquamish CDP | Kitsap County | 33,071 |
| 98371 | Edgewood city, Fife city, Puyallup city, Summit CDP, Waller CDP | Pierce County | 22,741 |
| 98372 | Alderton CDP, Edgewood city, North Puyallup CDP, Puyallup city, Sumner city | Pierce County | 27,127 |
| 98373 | Clover Creek CDP, Puyallup city, South Hill CDP, Summit CDP, Summit View CDP | Pierce County | 29,283 |
| 98374 | Alderton CDP, Graham CDP, McMillin CDP, Puyallup city, South Hill CDP | Pierce County | 42,974 |
| 98375 | Clover Creek CDP, Frederickson CDP, South Hill CDP, Summit View CDP | Pierce County | 31,973 |
| 98376 | Quilcene CDP | Clallam County, Jefferson County | 2,044 |
| 98377 | Packwood CDP | Lewis County, Skamania County | 2,057 |
| 98380 | Seabeck CDP | Kitsap County, Mason County | 5,753 |
| 98381 | Sekiu CDP | Clallam County | 235 |
| 98382 | Bell Hill CDP, Blyn CDP, Carlsborg CDP, Jamestown CDP, River Road CDP, Sequim city | Clallam County, Jefferson County | 30,366 |
| 98383 | Chico CDP, Silverdale CDP | Kitsap County | 22,541 |
| 98385 | Prairie Ridge CDP, South Prairie town | Pierce County | 462 |
| 98387 | Elk Plain CDP, Frederickson CDP, Graham CDP, Parkland CDP, South Creek CDP, South Hill CDP, Spanaway CDP | Pierce County | 52,017 |
| 98388 | Ketron Island CDP, Lakewood city, Steilacoom town, University Place city | Pierce County | 6,975 |
| 98390 | Alderton CDP, Auburn city, North Puyallup CDP, Pacific city, Sumner city | Pierce County | 11,413 |
| 98391 | Alderton CDP, Auburn city, Bonney Lake city, Lake Tapps CDP, Orting city, Prairie Heights CDP, Prairie Ridge CDP, Sumner city, Tehaleh CDP | King County, Pierce County | 55,662 |
| 98392 | Suquamish CDP | Kitsap County | 3,231 |
| 98394 | Key Center CDP, Vaughn CDP | Pierce County | 1,186 |
| 98396 | Carbonado town, Wilkeson town | Pierce County | 620 |
| 98402 | Ruston town, Tacoma city | Pierce County | 6,805 |
| 98403 | Tacoma city | Pierce County | 8,441 |
| 98404 | Midland CDP, Tacoma city, Waller CDP | Pierce County | 35,357 |
| 98405 | Tacoma city | Pierce County | 24,053 |
| 98406 | Tacoma city | Pierce County | 22,708 |
| 98407 | Ruston town, Tacoma city | Pierce County | 20,993 |
| 98408 | Tacoma city | Pierce County | 22,016 |
| 98409 | Lakewood city, Tacoma city | Pierce County | 28,403 |
| 98416 | Tacoma city | Pierce County | 1,057 |
| 98418 | Tacoma city | Pierce County | 9,813 |
| 98421 | Fife city, Tacoma city | Pierce County | 950 |
| 98422 | Browns Point CDP, Dash Point CDP, Federal Way city, Fife Heights CDP, Milton city, Tacoma city | King County, Pierce County | 22,002 |
| 98424 | Fife city, Fife Heights CDP, Milton city, Tacoma city, Waller CDP | Pierce County | 12,019 |
| 98430 | North Fort Lewis CDP | Pierce County | 0 |
| 98433 | DuPont city, Fort Lewis CDP, Lakewood city, North Fort Lewis CDP | Pierce County | 19,771 |
| 98438 | McChord AFB CDP | Pierce County | 576 |
| 98439 | Fort Lewis CDP, Lakewood city, McChord AFB CDP | Pierce County | 6,095 |
| 98443 | Waller CDP | Pierce County | 5,688 |
| 98444 | Lakewood city, McChord AFB CDP, Midland CDP, Parkland CDP, Spanaway CDP, Tacoma city | Pierce County | 35,083 |
| 98445 | Clover Creek CDP, Frederickson CDP, Midland CDP, Parkland CDP, Spanaway CDP, Summit CDP, Tacoma city | Pierce County | 32,304 |
| 98446 | Clover Creek CDP, Frederickson CDP, Summit CDP, Waller CDP | Pierce County | 13,068 |
| 98447 | Parkland CDP | Pierce County | 1,303 |
| 98465 | Tacoma city | Pierce County | 7,092 |
| 98466 | Fircrest city, Tacoma city, University Place city | Pierce County | 29,989 |
| 98467 | Steilacoom town, Tacoma city, University Place city | Pierce County | 15,382 |
| 98498 | Lakewood city, North Fort Lewis CDP, Steilacoom town | Pierce County | 29,062 |
| 98499 | Lakewood city, McChord AFB CDP, Parkland CDP, Tacoma city | Pierce County | 33,589 |
| 98501 | Lacey city, Olympia city, Tumwater city | Thurston County | 46,170 |
| 98502 | Olympia city, Tumwater city | Mason County, Thurston County | 35,954 |
| 98503 | Lacey city, Olympia city, Tanglewilde CDP | Thurston County | 42,023 |
| 98505 | | Thurston County | 145 |
| 98506 | Lacey city, Olympia city | Thurston County | 18,232 |
| 98512 | Olympia city, Tumwater city | Thurston County | 30,251 |
| 98513 | Lacey city, Nisqually Indian Community CDP | Pierce County, Thurston County | 36,117 |
| 98516 | Lacey city, Olympia city, Tanglewilde CDP | Pierce County, Thurston County | 26,336 |
| 98520 | Aberdeen city, Aberdeen Gardens CDP, Central Park CDP, Cosmopolis city, Hoquiam city, Markham CDP, Ocosta CDP | Grays Harbor County, Pacific County | 25,064 |
| 98524 | Allyn CDP, Grapeview CDP | Mason County, Pierce County | 4,326 |
| 98526 | Amanda Park CDP | Grays Harbor County, Jefferson County | 206 |
| 98527 | Bay Center CDP | Pacific County | 237 |
| 98528 | Allyn CDP, Belfair CDP | Kitsap County, Mason County, Pierce County | 13,082 |
| 98530 | Bucoda town | Thurston County | 551 |
| 98531 | Bucoda town, Centralia city, Fords Prairie CDP, Grand Mound CDP | Lewis County, Thurston County | 26,501 |
| 98532 | Centralia city, Chehalis city, Napavine city, Onalaska CDP, Pe Ell town | Lewis County, Pacific County | 26,100 |
| 98533 | | Lewis County, Thurston County | 524 |
| 98535 | Copalis Beach CDP, Ocean City CDP | Grays Harbor County | 598 |
| 98536 | Copalis Beach CDP, Pacific Beach CDP | Grays Harbor County | 0 |
| 98537 | Cosmopolis city | Grays Harbor County, Lewis County, Pacific County | 2,688 |
| 98538 | | Cowlitz County, Lewis County | 417 |
| 98539 | | Lewis County | 136 |
| 98541 | Elma city, Malone CDP, Porter CDP, Satsop CDP | Grays Harbor County, Mason County, Thurston County | 10,343 |
| 98542 | | Lewis County | 669 |
| 98544 | | Lewis County | 55 |
| 98546 | Grapeview CDP | Mason County | 2,920 |
| 98547 | Grayland CDP | Grays Harbor County, Pacific County | 1,317 |
| 98548 | Hoodsport CDP | Mason County | 2,197 |
| 98550 | Aberdeen city, Hogans Corner CDP, Hoquiam city, Humptulips CDP, Oyehut CDP | Grays Harbor County | 11,691 |
| 98552 | Humptulips CDP, Neilton CDP | Grays Harbor County | 240 |
| 98555 | | Mason County | 350 |
| 98556 | | Thurston County | 592 |
| 98557 | McCleary city | Grays Harbor County, Mason County, Thurston County | 3,650 |
| 98558 | McKenna CDP | Pierce County, Thurston County | 51 |
| 98559 | Malone CDP | Grays Harbor County | 0 |
| 98560 | | Grays Harbor County, Mason County | 98 |
| 98562 | Moclips CDP, Pacific Beach CDP | Grays Harbor County | 43 |
| 98563 | Aberdeen city, Brady CDP, Cosmopolis city, Montesano city | Grays Harbor County, Mason County | 7,636 |
| 98564 | Mossyrock city | Cowlitz County, Lewis County | 2,684 |
| 98565 | Napavine city | Lewis County | 303 |
| 98566 | Neilton CDP | Grays Harbor County | 302 |
| 98568 | Oakville city | Grays Harbor County, Lewis County, Pacific County, Thurston County | 2,549 |
| 98569 | Hogans Corner CDP, Ocean City CDP, Ocean Shores city | Grays Harbor County | 6,826 |
| 98570 | Onalaska CDP | Lewis County, Thurston County | 4,674 |
| 98571 | Moclips CDP, Pacific Beach CDP | Grays Harbor County | 77 |
| 98572 | Pe Ell town | Lewis County, Pacific County | 884 |
| 98575 | Neilton CDP | Grays Harbor County, Jefferson County | 117 |
| 98576 | Rainier city, Yelm city | Thurston County | 5,277 |
| 98577 | Lebam CDP, Raymond city, South Bend city, Willapa CDP | Grays Harbor County, Lewis County, Pacific County | 7,121 |
| 98579 | Grand Mound CDP, Rochester CDP | Grays Harbor County, Lewis County, Thurston County | 13,440 |
| 98580 | Fort Lewis CDP, McKenna CDP, Roy city, South Creek CDP | Pierce County, Thurston County | 11,358 |
| 98581 | Ryderwood CDP | Cowlitz County, Lewis County | 402 |
| 98582 | | Lewis County | 177 |
| 98583 | Satsop CDP | Grays Harbor County | 120 |
| 98584 | Shelton city, Skokomish CDP | Mason County, Thurston County | 37,360 |
| 98585 | | Lewis County | 610 |
| 98586 | South Bend city | Pacific County | 1,863 |
| 98587 | Qui-nai-elt Village CDP, Santiago CDP, Taholah CDP | Grays Harbor County | 810 |
| 98588 | | Mason County | 1,490 |
| 98589 | Tenino city | Lewis County, Thurston County | 7,699 |
| 98590 | Tokeland CDP | Pacific County | 539 |
| 98591 | Toledo city | Lewis County | 3,582 |
| 98592 | Union CDP | Mason County | 1,543 |
| 98593 | Vader city | Lewis County | 1,247 |
| 98595 | Cohassett Beach CDP, Grayland CDP, Westport city | Grays Harbor County | 2,698 |
| 98596 | Napavine city, Vader city, Winlock city | Lewis County | 7,856 |
| 98597 | North Yelm CDP, Yelm city | Lewis County, Pierce County, Thurston County | 26,222 |
| 98601 | Amboy CDP | Clark County, Cowlitz County, Skamania County | 3,237 |
| 98602 | | Klickitat County | 126 |
| 98603 | | Cowlitz County | 1,307 |
| 98604 | Battle Ground city, Cherry Grove CDP, Dollars Corner CDP, Duluth CDP, Hockinson CDP, Lewisville CDP, Meadow Glade CDP, Venersborg CDP | Clark County | 37,041 |
| 98605 | Bingen city, White Salmon city | Hood River County, Klickitat County, Skamania County | 1,245 |
| 98606 | Battle Ground city, Brush Prairie CDP, Hockinson CDP, Orchards CDP, Venersborg CDP | Clark County | 9,551 |
| 98607 | Camas city, Fern Prairie CDP, Vancouver city, Washougal city | Clark County | 34,674 |
| 98609 | | Cowlitz County | 0 |
| 98610 | Carson CDP | Clark County, Skamania County | 2,932 |
| 98611 | Castle Rock city | Cowlitz County, Lewis County | 9,478 |
| 98612 | Cathlamet town, East Cathlamet CDP, Lower Elochoman CDP, Puget Island CDP, Skamokawa Valley CDP, Upper Elochoman CDP | Wahkiakum County | 3,209 |
| 98613 | Centerville CDP | Klickitat County | 560 |
| 98614 | Chinook CDP | Pacific County | 364 |
| 98616 | Cougar CDP | Clark County, Cowlitz County, Lewis County, Skamania County | 117 |
| 98617 | Dallesport CDP | Klickitat County | 1,100 |
| 98619 | Glenwood CDP | Klickitat County | 609 |
| 98620 | Goldendale city, Maryhill CDP | Klickitat County | 7,711 |
| 98621 | Grays River CDP, Rosburg CDP | Pacific County, Wahkiakum County | 228 |
| 98623 | | Klickitat County | 42 |
| 98624 | Chinook CDP, Ilwaco city | Pacific County | 1,994 |
| 98625 | Kalama city | Cowlitz County | 6,397 |
| 98626 | Beacon Hill CDP, Castle Rock city, Kalama city, Kelso city, Lexington CDP, Longview city, Longview Heights CDP | Cowlitz County | 26,579 |
| 98628 | Klickitat CDP | Klickitat County | 306 |
| 98629 | La Center city | Clark County | 8,872 |
| 98631 | Long Beach city | Pacific County | 3,458 |
| 98632 | Beacon Hill CDP, Kelso city, Longview city, Longview Heights CDP | Cowlitz County, Wahkiakum County | 50,944 |
| 98635 | Dallesport CDP, Klickitat CDP, Lyle CDP | Klickitat County | 1,877 |
| 98638 | Deep River CDP, Grays River CDP, Naselle CDP, Rosburg CDP | Pacific County, Wahkiakum County | 1,560 |
| 98639 | North Bonneville city | Skamania County | 1,177 |
| 98640 | Ocean Park CDP | Pacific County | 4,694 |
| 98641 | | Pacific County | 114 |
| 98642 | Dollars Corner CDP, Duluth CDP, La Center city, Mount Vista CDP, Ridgefield city | Clark County | 22,934 |
| 98643 | Altoona CDP, Deep River CDP, Grays River CDP, Rosburg CDP, Skamokawa Valley CDP | Wahkiakum County | 414 |
| 98644 | | Pacific County | 628 |
| 98645 | | Cowlitz County | 2,137 |
| 98647 | Grays River CDP, Skamokawa Valley CDP | Wahkiakum County | 236 |
| 98648 | Carson CDP, North Bonneville city, Stevenson city | Hood River County, Multnomah County, Skamania County | 3,283 |
| 98649 | | Cowlitz County, Lewis County | 726 |
| 98650 | Trout Lake CDP | Klickitat County, Skamania County | 1,133 |
| 98651 | | Hood River County, Klickitat County, Skamania County | 1,035 |
| 98660 | Vancouver city | Clark County | 12,917 |
| 98661 | Minnehaha CDP, Vancouver city | Clark County | 49,822 |
| 98662 | Barberton CDP, Brush Prairie CDP, Five Corners CDP, Orchards CDP, Vancouver city | Clark County | 36,573 |
| 98663 | Hazel Dell CDP, Vancouver city | Clark County | 15,263 |
| 98664 | Vancouver city | Clark County | 23,141 |
| 98665 | Five Corners CDP, Hazel Dell CDP, Lake Shore CDP, Salmon Creek CDP, Vancouver city | Clark County | 27,175 |
| 98670 | | Klickitat County | 48 |
| 98671 | Camas city, Fern Prairie CDP, Washougal city | Clark County, Multnomah County, Skamania County | 23,782 |
| 98672 | White Salmon city | Klickitat County, Skamania County | 7,062 |
| 98673 | Wishram CDP | Klickitat County | 489 |
| 98674 | Woodland city | Clark County, Cowlitz County | 15,426 |
| 98675 | Amboy CDP, Yacolt town | Clark County, Skamania County | 7,083 |
| 98682 | Brush Prairie CDP, Camas city, Hockinson CDP, Orchards CDP, Vancouver city | Clark County | 66,229 |
| 98683 | Vancouver city | Clark County | 31,969 |
| 98684 | Vancouver city | Clark County | 34,394 |
| 98685 | Felida CDP, Lake Shore CDP, Salmon Creek CDP | Clark County | 30,199 |
| 98686 | Barberton CDP, Five Corners CDP, Mount Vista CDP, Salmon Creek CDP | Clark County | 20,547 |
| 98801 | South Wenatchee CDP, Sunnyslope CDP, Wenatchee city | Chelan County, Kittitas County | 44,861 |
| 98802 | East Wenatchee city | Douglas County | 31,480 |
| 98811 | | Chelan County | 120 |
| 98812 | Brewster city, Pateros city | Douglas County, Okanogan County | 5,403 |
| 98813 | Bridgeport city | Douglas County, Okanogan County | 2,642 |
| 98814 | | Okanogan County | 690 |
| 98815 | Cashmere city | Chelan County | 7,451 |
| 98816 | Chelan city, Chelan Falls CDP | Chelan County, Douglas County, Okanogan County | 6,219 |
| 98817 | Chelan Falls CDP | Chelan County | 131 |
| 98819 | Conconully town | Okanogan County | 190 |
| 98821 | | Chelan County | 1,131 |
| 98822 | Entiat city | Chelan County | 1,831 |
| 98823 | Ephrata city | Douglas County, Grant County | 12,514 |
| 98824 | George city | Grant County | 161 |
| 98826 | Leavenworth city | Chelan County, Kittitas County, Snohomish County | 7,505 |
| 98827 | Loomis CDP | Okanogan County | 339 |
| 98828 | | Chelan County, Kittitas County | 2,002 |
| 98829 | Malott CDP | Okanogan County | 647 |
| 98830 | Mansfield town | Douglas County | 482 |
| 98831 | Manson CDP | Chelan County | 3,691 |
| 98832 | Krupp (Marlin) town | Adams County, Grant County, Lincoln County | 155 |
| 98833 | | Chelan County, Okanogan County, Skagit County, Whatcom County | 149 |
| 98834 | Methow CDP | Okanogan County | 278 |
| 98836 | | Chelan County | 796 |
| 98837 | Cascade Valley CDP, Moses Lake city, Moses Lake North CDP, Wheeler CDP | Grant County | 45,729 |
| 98840 | Malott CDP, Okanogan city, Omak city | Okanogan County | 4,895 |
| 98841 | Disautel CDP, North Omak CDP, Omak city, Riverside town | Ferry County, Okanogan County | 9,135 |
| 98843 | | Douglas County | 2,066 |
| 98844 | Oroville city | Okanogan County | 4,736 |
| 98845 | | Douglas County | 270 |
| 98846 | Pateros city | Chelan County, Okanogan County | 1,277 |
| 98847 | | Chelan County, Kittitas County | 2,780 |
| 98848 | Crescent Bar CDP, George city, Quincy city, Sunland Estates CDP | Douglas County, Grant County | 12,782 |
| 98849 | Omak city, Riverside town | Okanogan County | 1,164 |
| 98850 | Rock Island city | Douglas County | 1,924 |
| 98851 | Lakeview CDP, Soap Lake city | Grant County | 5,212 |
| 98852 | | Chelan County, Okanogan County | 20 |
| 98853 | | Grant County | 116 |
| 98855 | Tonasket city | Ferry County, Okanogan County | 5,870 |
| 98856 | Twisp town | Chelan County, Okanogan County | 2,595 |
| 98857 | Warden city | Adams County, Grant County | 3,431 |
| 98858 | Waterville town | Douglas County | 1,747 |
| 98859 | | Ferry County, Okanogan County | 78 |
| 98860 | Wilson Creek town | Grant County | 257 |
| 98862 | Twisp town, Winthrop town | Okanogan County, Whatcom County | 2,546 |
| 98901 | Moxee city, Terrace Heights CDP, Union Gap city, Yakima city | Kittitas County, Yakima County | 31,873 |
| 98902 | Yakima city | Yakima County | 45,913 |
| 98903 | Ahtanum CDP, Tampico CDP, Union Gap city, Yakima city | Lewis County, Yakima County | 17,577 |
| 98908 | Ahtanum CDP, Eschbach CDP, Gleed CDP, Summitview CDP, Yakima city | Yakima County | 38,936 |
| 98921 | Buena CDP | Yakima County | 0 |
| 98922 | Cle Elum city, Easton CDP, Roslyn city, South Cle Elum town | Chelan County, Kittitas County | 7,162 |
| 98923 | Cowiche CDP | Yakima County | 760 |
| 98925 | Easton CDP, Roslyn city | Kittitas County | 547 |
| 98926 | Ellensburg city, Kittitas city | Kittitas County | 32,559 |
| 98930 | Grandview city | Benton County, Yakima County | 14,952 |
| 98932 | Granger city | Yakima County | 5,109 |
| 98933 | Harrah town | Yakima County | 1,188 |
| 98934 | Kittitas city | Kittitas County | 1,046 |
| 98935 | Grandview city, Mabton city | Klickitat County, Yakima County | 4,347 |
| 98936 | Moxee city | Yakima County | 7,589 |
| 98937 | Cliffdell CDP, Eschbach CDP, Gleed CDP, Naches town, Nile CDP | Kittitas County, Lewis County, Pierce County, Yakima County | 4,483 |
| 98938 | Outlook CDP, Sunnyside city | Yakima County | 2,401 |
| 98939 | Parker CDP | Yakima County | 105 |
| 98940 | Ronald CDP, Roslyn city | Kittitas County | 445 |
| 98941 | Roslyn city | Kittitas County | 703 |
| 98942 | Selah city, Yakima city | Yakima County | 17,949 |
| 98943 | Cle Elum city, South Cle Elum town | Kittitas County | 792 |
| 98944 | Richland city, Sunnyside city | Benton County, Franklin County, Grant County, Yakima County | 25,194 |
| 98946 | Thorp CDP | Kittitas County | 310 |
| 98947 | Cowiche CDP, Tieton city | Yakima County | 3,172 |
| 98948 | Toppenish city | Yakima County | 12,972 |
| 98950 | Vantage CDP | Kittitas County | 29 |
| 98951 | Donald CDP, Parker CDP, Wapato city | Yakima County | 13,061 |
| 98952 | White Swan CDP | Yakima County | 1,956 |
| 98953 | Buena CDP, Zillah city | Yakima County | 6,684 |
| 99001 | Airway Heights city, Spokane city | Spokane County | 8,400 |
| 99003 | | Spokane County | 4,147 |
| 99004 | Cheney city, Four Lakes CDP | Lincoln County, Spokane County, Whitman County | 21,836 |
| 99005 | Green Bluff CDP | Spokane County | 11,159 |
| 99006 | Deer Park city, Suncrest CDP | Pend Oreille County, Spokane County, Stevens County | 13,649 |
| 99008 | | Lincoln County, Spokane County | 401 |
| 99009 | | Pend Oreille County, Spokane County | 4,677 |
| 99011 | Fairchild AFB CDP | Spokane County | 3,343 |
| 99012 | Fairfield town, Latah town, Waverly town | Spokane County | 1,081 |
| 99013 | | Lincoln County, Spokane County, Stevens County | 1,436 |
| 99014 | Four Lakes CDP | Spokane County | 31 |
| 99016 | Liberty Lake city, Spokane Valley city | Spokane County | 17,913 |
| 99017 | Lamont town | Adams County, Lincoln County, Whitman County | 167 |
| 99018 | Latah town | Spokane County, Whitman County | 277 |
| 99019 | Liberty Lake city | Spokane County | 12,261 |
| 99020 | | Spokane County | 0 |
| 99021 | Green Bluff CDP, Mead CDP | Spokane County | 10,139 |
| 99022 | Airway Heights city, Fairchild AFB CDP, Medical Lake city | Spokane County | 8,740 |
| 99023 | | Spokane County | 883 |
| 99025 | Otis Orchards-East Farms CDP | Spokane County | 5,910 |
| 99026 | Spokane city, Suncrest CDP | Spokane County, Stevens County | 8,521 |
| 99027 | Otis Orchards-East Farms CDP, Spokane Valley city | Spokane County | 5,832 |
| 99029 | Reardan town | Lincoln County, Spokane County | 1,240 |
| 99030 | Rockford town | Spokane County | 633 |
| 99031 | Spangle city | Spokane County | 1,313 |
| 99032 | Sprague city | Adams County, Lincoln County, Spokane County | 826 |
| 99034 | | Stevens County | 231 |
| 99036 | | Spokane County | 1,549 |
| 99037 | Spokane Valley city | Spokane County | 15,647 |
| 99039 | Waverly town | Spokane County | 181 |
| 99040 | | Lincoln County, Stevens County | 778 |
| 99101 | Addy CDP | Stevens County | 1,612 |
| 99102 | Albion town | Whitman County | 580 |
| 99103 | Almira town | Grant County, Lincoln County | 543 |
| 99105 | | Adams County, Whitman County | 27 |
| 99109 | Chewelah city | Pend Oreille County, Stevens County | 4,743 |
| 99110 | Clayton CDP | Spokane County, Stevens County | 1,656 |
| 99111 | Colfax city, Steptoe CDP | Whitman County | 4,057 |
| 99113 | Colton town | Whitman County | 559 |
| 99114 | Colville city, Northport town | Pend Oreille County, Stevens County | 13,134 |
| 99115 | Banks Lake South CDP, Coulee City town | Douglas County, Grant County | 1,261 |
| 99116 | Coulee Dam town, Elmer City town, Grand Coulee city | Douglas County, Ferry County, Grant County, Okanogan County | 1,706 |
| 99117 | Creston town | Lincoln County | 516 |
| 99118 | Curlew CDP | Ferry County, Okanogan County | 811 |
| 99119 | Cusick town | Pend Oreille County | 1,491 |
| 99121 | Danville CDP | Ferry County | 272 |
| 99122 | Davenport city | Lincoln County, Stevens County | 4,269 |
| 99123 | Electric City city, Grand Coulee city | Grant County, Lincoln County | 1,031 |
| 99124 | Elmer City town | Okanogan County | 258 |
| 99125 | Endicott town | Adams County, Whitman County | 647 |
| 99126 | Marcus town | Stevens County | 765 |
| 99129 | | Stevens County | 625 |
| 99130 | Colfax city, Garfield town | Latah County, Whitman County | 791 |
| 99131 | | Stevens County | 132 |
| 99133 | Electric City city, Grand Coulee city | Douglas County, Grant County, Lincoln County, Okanogan County | 1,440 |
| 99134 | Harrington city | Lincoln County | 572 |
| 99135 | Hartline town | Grant County | 406 |
| 99136 | | Whitman County | 21 |
| 99137 | | Stevens County | 413 |
| 99138 | Inchelium CDP, Twin Lakes CDP | Ferry County | 1,152 |
| 99139 | Ione town | Pend Oreille County, Stevens County | 806 |
| 99140 | Keller CDP | Ferry County, Okanogan County | 494 |
| 99141 | Barney's Junction CDP, Barstow CDP, Boyds CDP, Kettle Falls city, Marcus town | Ferry County, Stevens County | 5,902 |
| 99143 | LaCrosse town | Adams County, Whitman County | 640 |
| 99144 | | Lincoln County | 15 |
| 99146 | Laurier CDP | Ferry County, Stevens County | 42 |
| 99147 | | Lincoln County | 161 |
| 99148 | Loon Lake CDP, Springdale town | Stevens County | 2,318 |
| 99149 | Malden town | Whitman County | 197 |
| 99150 | Malo CDP | Ferry County | 256 |
| 99151 | Marcus town | Stevens County | 158 |
| 99152 | Metaline town | Pend Oreille County | 148 |
| 99153 | Metaline Falls town | Pend Oreille County | 424 |
| 99154 | | Lincoln County | 41 |
| 99155 | Nespelem town, Nespelem Community CDP | Ferry County, Okanogan County | 1,245 |
| 99156 | Newport city | Pend Oreille County, Spokane County | 8,901 |
| 99157 | Northport town | Stevens County | 633 |
| 99158 | Oakesdale town | Whitman County | 579 |
| 99159 | Odessa town | Adams County, Grant County, Lincoln County | 1,341 |
| 99160 | Orient CDP | Ferry County | 88 |
| 99161 | Palouse city | Latah County, Whitman County | 1,373 |
| 99163 | Albion town, Pullman city | Whitman County | 34,815 |
| 99166 | Curlew Lake CDP, Pine Grove CDP, Republic city, Torboy CDP | Ferry County, Okanogan County | 2,934 |
| 99167 | | Stevens County | 732 |
| 99169 | Ritzville city | Adams County, Lincoln County, Whitman County | 2,643 |
| 99170 | Malden town, Rosalia town | Spokane County, Whitman County | 980 |
| 99171 | St. John town | Whitman County | 941 |
| 99173 | Springdale town | Stevens County | 1,638 |
| 99174 | Steptoe CDP | Whitman County | 33 |
| 99176 | | Whitman County | 207 |
| 99179 | Uniontown town | Nez Perce County, Whitman County | 500 |
| 99180 | Cusick town | Pend Oreille County | 791 |
| 99181 | Valley CDP | Stevens County | 2,143 |
| 99185 | Wilbur town | Lincoln County | 1,235 |
| 99201 | Spokane city | Spokane County | 14,147 |
| 99202 | Spokane city, Spokane Valley city | Spokane County | 20,526 |
| 99203 | Spokane city | Spokane County | 21,500 |
| 99204 | Spokane city | Spokane County | 7,375 |
| 99205 | Spokane city, Town and Country CDP | Spokane County | 43,901 |
| 99206 | Millwood city, Spokane Valley city | Spokane County | 42,139 |
| 99207 | Spokane city | Spokane County | 32,732 |
| 99208 | Country Homes CDP, Fairwood CDP, Mead CDP, Spokane city, Town and Country CDP | Spokane County | 57,606 |
| 99212 | Millwood city, Spokane city, Spokane Valley city | Spokane County | 20,395 |
| 99216 | Spokane Valley city | Spokane County | 27,597 |
| 99217 | Mead CDP, Spokane city | Spokane County | 19,226 |
| 99218 | Country Homes CDP, Fairwood CDP, Spokane city, Town and Country CDP | Spokane County | 15,233 |
| 99223 | Spokane city | Spokane County | 34,013 |
| 99224 | Airway Heights city, Spokane city | Spokane County | 23,705 |
| 99251 | Country Homes CDP | Spokane County | 1,258 |
| 99258 | Spokane city | Spokane County | 486 |
| 99301 | Pasco city, West Pasco CDP | Franklin County | 84,124 |
| 99320 | Benton City city, West Richland city | Benton County | 9,756 |
| 99321 | Beverly CDP, Schwana CDP | Grant County | 736 |
| 99322 | Bickleton CDP | Klickitat County | 380 |
| 99323 | Burbank CDP | Walla Walla County | 4,494 |
| 99324 | College Place city, Garrett CDP, Walla Walla city | Walla Walla County | 10,045 |
| 99326 | Connell city, Hatton town, Mesa city | Adams County, Franklin County | 6,116 |
| 99328 | Dayton city | Columbia County, Walla Walla County | 3,616 |
| 99329 | Dixie CDP | Walla Walla County | 175 |
| 99330 | Mesa city | Franklin County | 1,183 |
| 99333 | | Adams County, Whitman County | 81 |
| 99335 | Kahlotus city | Adams County, Franklin County | 164 |
| 99336 | Kennewick city, Richland city | Benton County | 51,839 |
| 99337 | Finley CDP, Kennewick city | Benton County, Franklin County | 32,393 |
| 99338 | Kennewick city, Richland city | Benton County | 17,266 |
| 99341 | Lind town | Adams County | 639 |
| 99343 | Basin City CDP, Mesa city | Benton County, Franklin County | 2,660 |
| 99344 | Hatton town, Marine View CDP, Othello city | Adams County, Franklin County, Grant County | 19,198 |
| 99345 | | Benton County, Klickitat County, Morrow County | 140 |
| 99346 | | Benton County, Umatilla County | 337 |
| 99347 | Pataha CDP, Pomeroy city | Columbia County, Garfield County, Whitman County | 2,367 |
| 99348 | Prescott city | Columbia County, Walla Walla County | 1,657 |
| 99349 | Desert Aire CDP, Mattawa city | Adams County, Benton County, Grant County | 7,856 |
| 99350 | Prosser city | Benton County, Klickitat County, Yakima County | 14,101 |
| 99352 | Kennewick city, Richland city, West Richland city | Benton County | 34,772 |
| 99353 | Richland city, West Richland city | Benton County | 17,685 |
| 99354 | Richland city | Benton County | 25,433 |
| 99356 | Roosevelt CDP | Klickitat County, Morrow County | 252 |
| 99357 | Royal City city | Adams County, Grant County | 4,047 |
| 99359 | Starbuck town | Columbia County, Franklin County | 159 |
| 99360 | Touchet CDP | Umatilla County, Walla Walla County | 1,460 |
| 99361 | Dixie CDP, Waitsburg city | Columbia County, Walla Walla County | 1,680 |
| 99363 | Wallula CDP | Walla Walla County | 46 |
| 99371 | Washtucna town | Adams County, Franklin County | 314 |
| 99401 | Anatone CDP | Asotin County, Garfield County, Wallowa County | 386 |
| 99402 | Asotin city | Asotin County | 1,449 |
| 99403 | Asotin city, Clarkston city, Clarkston Heights-Vineland CDP, West Clarkston-Highland CDP | Asotin County, Garfield County | 20,492 |