COUNTY · 1990 CENSUS

Mahaska County

Iowa · 21,522 residents · 570.851 sq mi

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The short version

Mahaska County has lower-than-average household income, with a median household income of $23,115. Population has declined 4% since 2000. 13% of adults hold a bachelor's degree or higher, below the national rate of 20%. Median home value is $36,700.

At a glance

Lower income

below the US median

US median: $30,130

Mid-age

median age 34.8

US median: 33.0

Less educated

13% hold a bachelor's degree

US average: 20%

More affordable

home values down 30%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

21,522

−4%vs 2000

vs 22,335 in 2000

1990 – 2025

Population density

38 / sq mi

−4%vs 2000

vs 39 / sq mi in 2000

US average: 221

Median age

34.8

−7%vs 2000

vs 37.2 in 2000

US average: 33.0

Population, 1990 – 2024

202422K

Section 02

Income & economy

Median household income

$23,115

−18%inflation adjusted, since 2000

vs $37,314 in 2000

US average: $30,130

1990 – 2024

Per capita income

$10,819

−41%vs 2000

vs $18,232 in 2000

US average: $14,340

Poverty rate

13.0%

+3.2 ptsvs 2000

vs 9.8% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$36,700

−30%inflation adjusted, since 2000

vs $69,100 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$289

−9%inflation adjusted, since 2000

vs $420 in 2000

US average: $450

Owner-occupied

70.0%

−1.1 ptsvs 2000

vs 71.1% in 2000

30.0% rent

Afford Score

1.6

−14%vs 2000

vs 1.9 in 2000

1990 – 2024

RELATED:See current rent listings in Mahaska County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic96.7%(21,609)

Black0.6%(140)

Hispanic / Latino0.9%(190)

Asian0.9%(191)

Other0%

Diversity Score5.8%(1,294)

1990

White, non-Hispanic98.9%(21,292)

Black0.2%(53)

Hispanic / Latino0.6%(123)

Asian0.4%(79)

Other0.5%(98)

Diversity Score4%(868)

Diversity Score

−30%vs 2000

vs 6 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

13.1%

−3.4 ptsvs 2000

vs 16.5% in 2000

US average: 20.3%

High school or higher

74.8%

−7.8 ptsvs 2000

vs 82.6% in 2000

US average: 75.2%

Graduate degree

3.9%

−0.4 ptsvs 2000

vs 4.3% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

25.1 min

+95%vs 2000

vs 12.9 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Mahaska County

Head to head

Compare Mahaska County to nearby counties

MAHASKA COUNTY VS

Marion County

Income$78,680+240%

Home value$233,000+535%

Population34,192+56%

SEE FULL COMPARISON →

MAHASKA COUNTY VS

Wapello County

Income$64,766+180%

Home value$125,100+241%

Population35,210+61%

SEE FULL COMPARISON →

MAHASKA COUNTY VS

Monroe County

Income$70,996+207%

Home value$156,300+326%

Population7,406−66%

SEE FULL COMPARISON →

MAHASKA COUNTY VS

Keokuk County

Income$62,329+170%

Home value$118,700+223%

Population9,797−55%

SEE FULL COMPARISON →

Frequently asked

How many people live in Mahaska County, Iowa?

Mahaska County, Iowa has about 21,522 residents according to the 1990 Census.

What is the median household income in Mahaska County, Iowa?

The typical household in Mahaska County, Iowa earns about $23,115 a year. Half of households make more than that, and half make less.

Is Mahaska County, Iowa expensive?

In Mahaska County, Iowa, the median home is worth about $36,700, and the typical rent is about $289 a month.

How educated are people in Mahaska County, Iowa?

About 13.1% of adults age 25 and over in Mahaska County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Mahaska County, Iowa?

About 13.0% of people in Mahaska County, Iowa live below the federal poverty line.

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7 census tracts

Census Tract 9503 Census Tract 9506 Census Tract 9505 Census Tract 9501 Census Tract 9502 Census Tract 9504 Census Tract 9507

9 ZIP codes

ZIP 52577 ZIP 50207 ZIP 52561 ZIP 52586 ZIP 52595 ZIP 52543 ZIP 50143 ZIP 52534 ZIP 50027

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →