Mahaska County, Iowa demographics
Population: 22,132
Median age: 38.6
Median household income: 60,617
Demographics, population, home values, social and economic characteristics of Mahaska County, Iowa.
Population
| 2021 | 22,132 |
| 2020 | 22,351 |
| 2019 | 22,164 |
| 2018 | 22,208 |
| 2017 | 22,301 |
| 2016 | 22,324 |
| 2015 | 22,396 |
| 2014 | 22,420 |
| 2013 | 22,428 |
| 2012 | 22,432 |
| 2011 | 22,433 |
| 2010 | 22,382 |
| 2009 | 22,094 |
Mahaska County, IA cities
Barnes City city - 143
Beacon city - 557
Eddyville city - 1,101
Fremont city - 824
Keomah Village city - 122
Leighton city - 181
New Sharon city - 1,159
Oskaloosa city - 11,552
Rose Hill city - 228
University Park city - 519
Census data for Mahaska County, Iowa
Demographic and housing estimates in Mahaska County, Iowa
| Total population | 22,132 |
| Male | 11,251 |
| Female | 10,881 |
| Total population | 22,132 |
| Under 5 years | 1,429 |
| 5 to 9 years | 1,446 |
| 10 to 14 years | 1,574 |
| 15 to 19 years | 1,587 |
| 20 to 24 years | 1,424 |
| 25 to 34 years | 2,617 |
| 35 to 44 years | 2,535 |
| 45 to 54 years | 2,566 |
| 55 to 59 years | 1,482 |
| 60 to 64 years | 1,503 |
| 65 to 74 years | 2,262 |
| 75 to 84 years | 1,163 |
| 85 years and over | 544 |
| Median age (years) | 38.6 |
| Under 18 years | 5,316 |
| 16 years and over | 17,494 |
| 18 years and over | 16,816 |
| 21 years and over | 15,774 |
| 62 years and over | 4,727 |
| 65 years and over | 3,969 |
| Total population | 22,132 |
| One race | 21,641 |
| White | 20,811 |
| Black or African American | 384 |
| American Indian and Alaska Native | 17 |
| Asian | 273 |
| Native Hawaiian and Other Pacific Islander | 30 |
| Some other race | 126 |
| Two or more races | 491 |
| Citizen, VOTING AGE 18 and over population | 16,666 |
| Male Citizen, VOTING AGE 18 and over population | 8,358 |
| Female Citizen, VOTING AGE 18 and over population | 8,308 |
Social characteristics in Mahaska County, Iowa
| Total households | 8,813 |
| Family households (families) | 4,525 |
| Married-couple family | 622 |
| Male householder, no wife present, family | 1,602 |
| Female householder, no husband present, family | 1,143 |
| Nonfamily households | 2,064 |
| Average household size | 2,723 |
| Average family size | 2.44 |
Economic characteristics in Mahaska County, Iowa
| Total households | 8,813 |
| Less than $10,000 | 365 |
| $10,000 to $14,999 | 598 |
| $15,000 to $24,999 | 973 |
| $25,000 to $34,999 | 630 |
| $35,000 to $49,999 | 1,078 |
| $50,000 to $74,999 | 1,664 |
| $75,000 to $99,999 | 1,435 |
| $100,000 to $149,999 | 1,499 |
| $150,000 to $199,999 | 325 |
| $200,000 or more | 246 |
| Median household income (dollars) | 60,617 |
Housing characteristics in Mahaska County, Iowa
| Total housing units | 9,701 |
| Occupied housing units | 8,813 |
| Vacant housing units | 888 |
| Total housing units | 9,701 |
| 1-unit, detached | 7,633 |
| 1-unit, attached | 65 |
| 2 units | 435 |
| 3 or 4 units | 488 |
| 5 to 9 units | 223 |
| 10 to 19 units | 139 |
| 20 or more units | 182 |
| Mobile home | 528 |
| Boat, RV, van, etc. | 8 |
| Total housing units | 9,701 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 392 |
| Built 2000 to 2009 | 779 |
| Built 1990 to 1999 | 787 |
| Built 1980 to 1989 | 671 |
| Built 1970 to 1979 | 1,524 |
| Built 1960 to 1969 | 747 |
| Built 1950 to 1959 | 1,035 |
| Built 1940 to 1949 | 442 |
| Built 1939 or earlier | 3,324 |
| Total housing units | 9,701 |
| 1 room | 56 |
| 2 rooms | 119 |
| 3 rooms | 733 |
| 4 rooms | 1,375 |
| 5 rooms | 1,833 |
| 6 rooms | 1,418 |
| 7 rooms | 1,595 |
| 8 rooms | 1,193 |
| 9 rooms or more | 1,379 |
| Median rooms | 6.0 |
| Total housing units | 9,701 |
| No bedroom | 68 |
| 1 bedroom | 725 |
| 2 bedrooms | 3,208 |
| 3 bedrooms | 3,637 |
| 4 bedrooms | 1,612 |
| 5 or more bedrooms | 451 |
| Occupied housing units | 8,813 |
| Owner-occupied | 5,911 |
| Renter-occupied | 2,902 |
| Average household size of owner-occupied unit | 2.51 |
| Average household size of renter-occupied unit | 2.30 |
| Occupied housing units | 8,813 |
| Moved in 2017 or later | 690 |
| Moved in 2015 to 2016 | 2,248 |
| Moved in 2010 to 2014 | 1,467 |
| Moved in 2000 to 2009 | 1,967 |
| Moved in 1990 to 1999 | 1,174 |
| Moved in 1989 and earlier | 1,267 |
| Owner-occupied units | 5,911 |
| Less than $50,000 | 630 |
| $50,000 to $99,999 | 1,788 |
| $100,000 to $149,999 | 1,329 |
| $150,000 to $199,999 | 741 |
| $200,000 to $299,999 | 913 |
| $300,000 to $499,999 | 404 |
| $500,000 to $999,999 | 77 |
| $1,000,000 or more | 29 |
| Median (dollars) | 118,600 |
| Owner-occupied units | 5,911 |
| Housing units with a mortgage | 3,357 |
| Housing units without a mortgage | 2,554 |
| Occupied units paying rent | 2,452 |
| Less than $500 | 624 |
| $500 to $999 | 1,533 |
| $1,000 to $1,499 | 286 |
| $1,500 to $1,999 | 3 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 6 |
| Median (dollars) | 696 |
| No rent paid | 450 |
Demographic data for Mahaska County, IA and each city in the county. Lists of cities by population, wealth and poverty in Mahaska County, IA.
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