Jasper County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 17th-largest in Iowa
The population of Jasper County, Iowa is 37,864 as of the 2023 American Community Survey, making it the 17th-largest county in Iowa. The median household income is $70,128, the median home value is $176,800, and the median age is 41.4.
The population of Jasper County has grown 3.5% since 2010 (36,810 → 38,107), a +0.25% annualized rate.
37,864
Population
+0.25%
Annual growth
52
People / sq mi
$70,128
Median Income
$176,800
Median Home Value
Jasper County covers 730 sq mi of land at 51.8 people per square mile.
About Jasper County, IA
Jasper County is a county in Iowa with a population of 37,864. It ranks #17 among counties in Iowa by population. The median age is 41.4, older than the national median. The population is 52.3% male and 47.7% female.
The median household income in Jasper County is $70,128, below the US median of $74,580. 5.2% of residents live below the federal poverty level. Home values sit at a median of $176,800, with monthly rent averaging $822. The homeownership rate of 74.8% is higher than the national rate of 64.8%.
Educational attainment in Jasper County reflects 19.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.4% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 23.5 minutes each way.
Jasper County Population History (2010-2024)
The county of Jasper County had a population of 36,810 in 2010 and 38,107 in 2024, a 3.5% growth over 14 years. The peak was 38,107 in 2024. Average annual growth rate: 0.25%.
38,107
Population (2024)
36,810
Population (2010)
38,107
Peak (2024)
0.25%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 36,810 |
| 2011 | 36,624 |
| 2012 | 36,583 |
| 2013 | 36,739 |
| 2014 | 36,891 |
| 2015 | 36,762 |
| 2016 | 36,722 |
| 2017 | 36,997 |
| 2018 | 37,121 |
| 2019 | 37,171 |
| 2020 | 37,818 |
| 2021 | 37,887 |
| 2022 | 37,966 |
| 2023 | 37,991 |
| 2024 | 38,107 |
Race & Ethnicity
| White | 92.8% |
| Black or African American | 1.6% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Age & Sex
41.4
Median Age
47.7%
Female
52.3%
Male
19.3%
Age 65+
Age Distribution
Children (under 15): 18.0% · Seniors (65+): 19.3%
Income & Poverty
| Median household income | $70,128$-3,019 vs state |
| Mean household income | $93,350 |
| Per-capita income | $37,380 |
| Poverty rate | 5.2%-1.7% vs state |
| Unemployment rate | 3.1% |
| Employment-to-population | 59.4% |
Top Industries by Employment
The largest employment sector in Jasper County is professional & business services, accounting for 21.2% of workers.
How residents commute
0.0%
Drive alone
2.9%
Carpool
79.0%
Public transit
9.4%
Work from home
23.5 min
Avg commute
Housing
$176,800$-19,100 vs state
Median home value
$822
Median rent
74.8%
Homeownership rate
16,208
Total housing units
91.0%
Occupied
9.0%
Vacant
25.2%
Renter-occupied
Social & access
95.9%
With health insurance
93.4%
With broadband internet
17.2%
Foreign-born
7.6%
Veterans (18+)
14.0%
With a disability
95.3%
Speak language other than English at home
Education
93.4%
High School+
19.9%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Jasper County, Iowa has a population of 37,864 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 17th-largest county in Iowa. Population density is 52 people per square mile.
The population of Jasper County has grown 3.5% since 2010 (36,810 → 38,107), a +0.25% annualized rate.
The median household income in Jasper County, Iowa is $70,128, with mean (average) household income of $93,350 and per-capita income of $37,380. 5.2% of residents live below the federal poverty level.
In Jasper County, the largest racial and ethnic groups are White (92.8%), Black or African American (1.6%), Hispanic or Latino (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Jasper County, Iowa is 41.4 years. Residents are 47.7% female and 52.3% male.
The median home value in Jasper County is $176,800 and median monthly rent is $822. 74.8% of occupied housing units are owner-occupied. The county has 16,208 total housing units, 9.0% of which are vacant.
The largest employment sector in Jasper County, Iowa is professional, scientific, and management services, employing 21.2% of workers. The unemployment rate is 3.1%.
Des Moines is among the largest cities associated with Jasper County, Iowa, with a population of 212,464.
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Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.