COUNTY · 1990 CENSUS

Warren County

Iowa · 36,033 residents · 569.658 sq mi

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The short version

Warren County has roughly average household income, with a median household income of $32,452. Population has declined 11% since 2000. Median home value is $59,400. Poverty is rare here, at 6.3% of residents.

At a glance

Wealthier

above the US median

US median: $30,130

Mid-age

median age 32.8

US median: 33.0

Less educated

16% hold a bachelor's degree

US average: 20%

More affordable

home values down 24%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

36,033

−11%vs 2000

vs 40,671 in 2000

1990 – 2025

Population density

63 / sq mi

−11%vs 2000

vs 71 / sq mi in 2000

US average: 221

Median age

32.8

−9%vs 2000

vs 36.0 in 2000

US average: 33.0

Population, 1990 – 2024

202454K

Section 02

Income & economy

Median household income

$32,452

−15%inflation adjusted, since 2000

vs $50,349 in 2000

US average: $30,130

1990 – 2024

Per capita income

$12,732

−38%vs 2000

vs $20,558 in 2000

US average: $14,340

Poverty rate

6.3%

+1.2 ptsvs 2000

vs 5.1% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$59,400

−24%inflation adjusted, since 2000

vs $102,600 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$348

−7%inflation adjusted, since 2000

vs $494 in 2000

US average: $450

Owner-occupied

76.8%

−3.1 ptsvs 2000

vs 79.9% in 2000

23.2% rent

Afford Score

1.8

−10%vs 2000

vs 2.0 in 2000

1990 – 2024

RELATED:See current rent listings in Warren County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic97.5%(39,635)

Black0.3%(106)

Hispanic / Latino1.1%(441)

Asian0.4%(155)

Other0%

Diversity Score4.3%(1,747)

1990

White, non-Hispanic99.2%(35,735)

Black0.1%(44)

Hispanic / Latino0.7%(249)

Asian0.4%(137)

Other0.3%(117)

Diversity Score3.7%(1,345)

Diversity Score

−13%vs 2000

vs 4 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

16.2%

−5.1 ptsvs 2000

vs 21.2% in 2000

US average: 20.3%

High school or higher

87.0%

−3.0 ptsvs 2000

vs 90.0% in 2000

US average: 75.2%

Graduate degree

4.4%

−1.6 ptsvs 2000

vs 6.1% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

26.5 min

+56%vs 2000

vs 17.0 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 Warren County

Head to head

Compare Warren County to nearby counties

WARREN COUNTY VS

Madison County

Income$90,855+180%

Home value$245,100+313%

Population17,270−70%

SEE FULL COMPARISON →

WARREN COUNTY VS

Clarke County

Income$71,641+121%

Home value$161,100+171%

Population9,574−83%

SEE FULL COMPARISON →

WARREN COUNTY VS

Lucas County

Income$61,793+90%

Home value$120,200+102%

Population8,847−85%

SEE FULL COMPARISON →

WARREN COUNTY VS

Polk County

Income$83,576+158%

Home value$262,100+341%

Population516,546+801%

SEE FULL COMPARISON →

Frequently asked

How many people live in Warren County, Iowa?

Warren County, Iowa has about 36,033 residents according to the 1990 Census.

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

The typical household in Warren County, Iowa earns about $32,452 a year. Half of households make more than that, and half make less.

Is Warren County, Iowa expensive?

In Warren County, Iowa, the median home is worth about $59,400, and the typical rent is about $348 a month.

How educated are people in Warren County, Iowa?

About 16.2% of adults age 25 and over in Warren County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Warren County, Iowa?

About 6.3% of people in Warren County, Iowa live below the federal poverty line.

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

How we source and harmonize this data →