Polk County, IA

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Polk County, Iowa demographics

Population: 488,871
Median age: 35.9

Median household income: 73,015

Demographics, population, home values, social and economic characteristics of Polk County, Iowa.

Population

2021488,871
2020485,418
2019479,612
2018474,274
2017467,235
2016459,159
2015452,369
2014445,136
2013438,307
2012431,811
2011425,582
2010419,301
2009415,949

Polk County, IA cities

Alleman city - 423

Altoona city - 19,345

Ankeny city - 66,346

Bondurant city - 7,163

Carlisle city - 4,063

Clive city - 18,323

Des Moines city - 213,545

Elkhart city - 631

Granger city - 1,973

Grimes city - 14,842

Johnston city - 23,418

Mitchellville city - 2,589

Norwalk city - 12,592

Pleasant Hill city - 10,203

Polk City city - 5,386

Runnells city - 459

Saylorville CDP - 2,916

Sheldahl city - 349

Urbandale city - 45,037

West Des Moines city - 67,640

Windsor Heights city - 5,208

Polk County, IA ZIP Codes

Census data for Polk County, Iowa

Demographic and housing estimates in Polk County, Iowa

Total population
Total population488,871
Male242,298
Female246,573
Population by age
Total population488,871
Under 5 years33,634
5 to 9 years32,822
10 to 14 years35,495
15 to 19 years31,558
20 to 24 years30,565
25 to 34 years74,572
35 to 44 years68,454
45 to 54 years60,230
55 to 59 years31,561
60 to 64 years26,244
65 to 74 years39,319
75 to 84 years16,979
85 years and over7,438
Median age (years)35.9
Under 18 years121,827
16 years and over380,838
18 years and over367,044
21 years and over349,182
62 years and over78,767
65 years and over63,736
Population by race
Total population488,871
One race467,668
   White397,715
   Black or African American35,109
   American Indian and Alaska Native1,114
   Asian24,135
   Native Hawaiian and Other Pacific Islander382
   Some other race9,213
Two or more races21,203
Citizen, voting age population
Citizen, VOTING AGE 18 and over population345,311
Male Citizen, VOTING AGE 18 and over population168,528
Female Citizen, VOTING AGE 18 and over population176,783

Social characteristics in Polk County, Iowa

Households by type
Total households195,263
Family households (families)89,432
Married-couple family14,920
Male householder, no wife present, family37,741
Female householder, no husband present, family26,702
Nonfamily households53,170
Average household size46,739
Average family size2.46

Economic characteristics in Polk County, Iowa

Income and benefits (in inflation-adjusted dollars)
Total households195,263
Less than $10,0007,030
$10,000 to $14,9995,857
$15,000 to $24,99912,661
$25,000 to $34,99915,202
$35,000 to $49,99923,988
$50,000 to $74,99935,949
$75,000 to $99,99927,898
$100,000 to $149,99935,643
$150,000 to $199,99915,984
$200,000 or more15,051
Median household income (dollars)73,015

Housing characteristics in Polk County, Iowa

Housing occupancy
Total housing units207,688
Occupied housing units195,263
Vacant housing units12,425
Units in structure
Total housing units207,688
1-unit, detached131,564
1-unit, attached15,364
2 units3,897
3 or 4 units4,268
5 to 9 units8,234
10 to 19 units10,652
20 or more units29,046
Mobile home4,417
Boat, RV, van, etc.246
Year structure built
Total housing units207,688
Built 2014 or later615
Built 2010 to 201324,947
Built 2000 to 200928,714
Built 1990 to 199926,691
Built 1980 to 198918,684
Built 1970 to 197929,553
Built 1960 to 196917,462
Built 1950 to 195920,690
Built 1940 to 19499,148
Built 1939 or earlier31,184
Rooms
Total housing units207,688
1 room4,581
2 rooms6,682
3 rooms19,472
4 rooms35,838
5 rooms36,701
6 rooms31,829
7 rooms24,553
8 rooms18,002
9 rooms or more30,030
Median rooms5.5
Bedrooms
Total housing units207,688
No bedroom5,453
1 bedroom21,270
2 bedrooms61,273
3 bedrooms73,155
4 bedrooms36,830
5 or more bedrooms9,707
Housing tenure
Occupied housing units195,263
Owner-occupied130,549
Renter-occupied64,714
Average household size of owner-occupied unit2.62
Average household size of renter-occupied unit2.13
Year householder moved into unit
Occupied housing units195,263
Moved in 2017 or later23,336
Moved in 2015 to 201666,441
Moved in 2010 to 201432,932
Moved in 2000 to 200937,354
Moved in 1990 to 199919,125
Moved in 1989 and earlier16,075
Value
Owner-occupied units130,549
Less than $50,0005,076
$50,000 to $99,99910,592
$100,000 to $149,99921,627
$150,000 to $199,99927,420
$200,000 to $299,99937,372
$300,000 to $499,99922,805
$500,000 to $999,9995,127
$1,000,000 or more530
Median (dollars)201,300
Mortgage status
Owner-occupied units130,549
Housing units with a mortgage92,299
Housing units without a mortgage38,250
Gross rent
Occupied units paying rent62,897
Less than $5003,608
$500 to $99929,772
$1,000 to $1,49922,003
$1,500 to $1,9995,639
$2,000 to $2,4991,364
$2,500 to $2,999176
$3,000 or more335
Median (dollars)977
No rent paid1,817

Demographic data for Polk County, IA and each city in the county. Lists of cities by population, wealth and poverty in Polk County, IA.

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