Jefferson County, Idaho demographics

Population: 30,427
Median age: 31.9

Median household income: 69,097

Demographics, population, home values, social and economic characteristics of Jefferson County, Idaho.

Population

202130,427
202029,238
201928,534
201827,969
201727,410
201627,096
201526,792
201426,620
201326,389
201225,940
201125,291
201024,523
200922,892

Jefferson County, ID cities

Hamer city - 37

Lewisville city - 488

Menan city - 902

Mud Lake city - 416

Rigby city - 4,920

Ririe city - 666

Roberts city - 425

Census data for Jefferson County, Idaho

Demographic and housing estimates in Jefferson County, Idaho

Total population
Total population30,427
Male15,435
Female14,992
Population by age
Total population30,427
Under 5 years2,463
5 to 9 years2,798
10 to 14 years3,309
15 to 19 years2,591
20 to 24 years1,756
25 to 34 years3,483
35 to 44 years4,190
45 to 54 years3,210
55 to 59 years1,551
60 to 64 years1,685
65 to 74 years2,194
75 to 84 years878
85 years and over319
Median age (years)31.9
Under 18 years10,338
16 years and over21,317
18 years and over20,089
21 years and over18,835
62 years and over4,419
65 years and over3,391
Population by race
Total population30,427
One race28,939
   White27,098
   Black or African American21
   American Indian and Alaska Native239
   Asian89
   Native Hawaiian and Other Pacific Islander0
   Some other race1,492
Two or more races1,488
Citizen, voting age population
Citizen, VOTING AGE 18 and over population19,324
Male Citizen, VOTING AGE 18 and over population9,867
Female Citizen, VOTING AGE 18 and over population9,457

Social characteristics in Jefferson County, Idaho

Households by type
Total households9,345
Family households (families)6,810
Married-couple family433
Male householder, no wife present, family858
Female householder, no husband present, family670
Nonfamily households1,244
Average household size2,314
Average family size3.25

Economic characteristics in Jefferson County, Idaho

Income and benefits (in inflation-adjusted dollars)
Total households9,345
Less than $10,000384
$10,000 to $14,999104
$15,000 to $24,999508
$25,000 to $34,999779
$35,000 to $49,9991,054
$50,000 to $74,9992,279
$75,000 to $99,9991,544
$100,000 to $149,9991,752
$150,000 to $199,999425
$200,000 or more516
Median household income (dollars)69,097

Housing characteristics in Jefferson County, Idaho

Housing occupancy
Total housing units9,953
Occupied housing units9,345
Vacant housing units608
Units in structure
Total housing units9,953
1-unit, detached8,360
1-unit, attached272
2 units52
3 or 4 units241
5 to 9 units89
10 to 19 units33
20 or more units47
Mobile home859
Boat, RV, van, etc.0
Year structure built
Total housing units9,953
Built 2014 or later24
Built 2010 to 20131,231
Built 2000 to 20092,503
Built 1990 to 1999904
Built 1980 to 1989986
Built 1970 to 19791,644
Built 1960 to 1969566
Built 1950 to 1959550
Built 1940 to 1949486
Built 1939 or earlier1,059
Rooms
Total housing units9,953
1 room80
2 rooms34
3 rooms342
4 rooms910
5 rooms1,628
6 rooms1,298
7 rooms969
8 rooms1,195
9 rooms or more3,497
Median rooms7.2
Bedrooms
Total housing units9,953
No bedroom92
1 bedroom250
2 bedrooms1,294
3 bedrooms3,660
4 bedrooms2,149
5 or more bedrooms2,508
Housing tenure
Occupied housing units9,345
Owner-occupied7,700
Renter-occupied1,645
Average household size of owner-occupied unit3.32
Average household size of renter-occupied unit2.91
Year householder moved into unit
Occupied housing units9,345
Moved in 2017 or later807
Moved in 2015 to 20162,202
Moved in 2010 to 20141,717
Moved in 2000 to 20092,387
Moved in 1990 to 1999913
Moved in 1989 and earlier1,319
Value
Owner-occupied units7,700
Less than $50,000409
$50,000 to $99,999496
$100,000 to $149,9991,087
$150,000 to $199,999887
$200,000 to $299,9992,306
$300,000 to $499,9991,694
$500,000 to $999,999757
$1,000,000 or more64
Median (dollars)245,100
Mortgage status
Owner-occupied units7,700
Housing units with a mortgage4,835
Housing units without a mortgage2,865
Gross rent
Occupied units paying rent1,354
Less than $50058
$500 to $999971
$1,000 to $1,499262
$1,500 to $1,99954
$2,000 to $2,4999
$2,500 to $2,9990
$3,000 or more0
Median (dollars)890
No rent paid291

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

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