US Census Data

Benton County vs Mahaska County

A side-by-side comparison of Benton County and Mahaska County: population, income, housing, and more.

Benton County and Mahaska County are counties in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Benton County has the higher population (25,698 vs 22,045 in Mahaska County). Benton County has the higher median household income ($84,742 vs $69,019 in Mahaska County). Benton County has the higher median home value ($198,400 vs $140,900 in Mahaska County).

Population, income & housing

Benton CountyMahaska County
Population25,69822,045
Median age43.3 yrs39.1 yrs
Median household income$84,742$69,019
Median home value$198,400$140,900
Median gross rent$815$821
Housing units11,0959,708
Homeownership rate84.3%67.8%
Bachelor's degree or higher24.9%23.0%
Unemployment rate2.3%3.3%

Trends (ACS 5-year, 2019–2023)

Benton CountyMahaska County
Population25,636 → 25,698 (+0.2%)22,164 → 22,045 (-0.5%)
Median household income$67,729 → $84,742 (+25.1%)$54,825 → $69,019 (+25.9%)
Median home value$157,200 → $198,400 (+26.2%)$115,300 → $140,900 (+22.2%)
Median gross rent$640 → $815 (+27.3%)$652 → $821 (+25.9%)

Benton County

Population
25,63625,698
Median household income
$67,729$84,742
Median home value
$157,200$198,400
Median gross rent
$640$815

Mahaska County

Population
22,16422,045
Median household income
$54,825$69,019
Median home value
$115,300$140,900
Median gross rent
$652$821

Age & race/ethnicity

Age distribution (share)

Benton CountyMahaska County
Under 55.8%6.1%
5 to 1717.3%17.8%
18 to 247.0%9.8%
25 to 3410.5%11.2%
35 to 4412.0%11.9%
45 to 5412.5%11.1%
55 to 6415.5%13.1%
65 to 7410.7%10.9%
75 and over8.6%8.1%

Race & ethnicity (share)

Benton CountyMahaska County
White (non-Hispanic)94.7%92.2%
Black or African American0.4%1.5%
American Indian & Alaska Native0.1%0.0%
Asian0.2%1.2%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.2%0.1%
Two or more races2.5%2.6%
Hispanic or Latino1.9%2.4%

Educational attainment (age 25+)

Share of adults 25+

Benton CountyMahaska County
No high school diploma5.3%6.0%
High school graduate33.2%38.7%
Some college or associate's36.6%32.3%
Bachelor's degree17.0%17.0%
Graduate or professional degree8.0%6.0%

Commute to work

How workers get to work (share)

Benton CountyMahaska County
Drove alone79.9%80.2%
Carpooled6.8%9.4%
Public transit0.2%0.1%
Walked2.0%3.7%
Bicycle0.0%0.0%
Worked from home10.4%6.3%
Other means0.6%0.3%

Housing

Units in structure (share)

Benton CountyMahaska County
1-unit, detached88.0%78.1%
1-unit, attached1.4%1.0%
2 to 4 units3.0%8.9%
5 to 19 units3.2%5.3%
20 or more units1.5%1.4%
Mobile home & other2.9%5.3%

Poverty & households

Benton CountyMahaska County
Poverty rate7.9%11.9%
Average household size2.512.40
Mean commute (minutes)2518
Median year structure built19651963

Full profiles

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Benton County vs Mahaska County: Compare Population & Demographics | US Census Data