Warren County, Iowa Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Iowa

The population of Warren County, Iowa is 53,484 as of the 2023 American Community Survey, making it the 11th-largest county in Iowa. The median household income is $92,990, the median home value is $252,800, and the median age is 38.7.

The population of Warren County has grown 21.6% since 2010 (46,341 → 56,343), a +1.41% annualized rate.

Warren County within Iowa · Source: US Census TIGER/Line via us-atlas

53,484

Population

+1.41%

Annual growth

People / sq mi

$92,990

Median Income

$252,800

Median Home Value

Warren County covers 570 sq mi of land at 93.9 people per square mile.

About Warren County, IA

The poverty rate is what most separates Warren County from the typical county: 3.1% of residents live below the federal poverty line, against 12.4% nationally. Warren County is a county in Iowa with a population of 53,484. It ranks #11 among counties in Iowa by population.

Households here are among the highest-earning of all US counties: median income is $92,990, above the US median of $78,538. Very few residents live in poverty — 3.1%, below the national 12.4%. A typical home is worth $252,800, with typical rent around $975.

About 32.7% of adults 25 and older have a bachelor’s degree, below the 35.0% national figure. About 13.6% of workers primarily work from home, close to the national 14.0%, and the average commute runs about 24 minutes each way.

Warren County Population History (2010-2024)

The county of Warren County had a population of 46,341 in 2010 and 56,343 in 2024, a 21.6% growth over 14 years. The peak was 56,343 in 2024. Average annual growth rate: 1.41%.

Warren County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

56,343

Population (2024)

46,341

Population (2010)

56,343

Peak (2024)

1.41%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	46,341	-	-	estimate
2011	46,654	+313	+0.68%	estimate
2012	46,906	+252	+0.54%	estimate
2013	47,369	+463	+0.99%	estimate
2014	47,848	+479	+1.01%	estimate
2015	48,486	+638	+1.33%	estimate
2016	49,383	+897	+1.85%	estimate
2017	50,087	+704	+1.43%	estimate
2018	51,053	+966	+1.93%	estimate
2019	51,548	+495	+0.97%	estimate
2020	52,591	+1,043	+2.02%	estimate
2021	53,487	+896	+1.70%	estimate
2022	54,325	+838	+1.57%	estimate
2023	55,298	+973	+1.79%	estimate
2024	56,343	+1,045	+1.89%	estimate

Race & Ethnicity

White	93.8%
Black or African American	0.7%
Asian	0.0%
Hispanic or Latino (any race)	1.2%
Two or More Races	0.0%

Age & Sex

38.7

Median Age

50.3%

Female

49.7%

Male

16.5%

Age 65+

Age Distribution

Under 5

5.8%

5–9

7.1%

10–14

7.4%

15–19

7.3%

20–24

6.0%

25–34

11.3%

35–44

13.9%

45–54

12.1%

55–59

5.9%

60–64

6.7%

65–74

9.7%

75–84

4.5%

85+

2.3%

Children (under 15): 20.3% · Seniors (65+): 16.5%

Income & Poverty

Median household income	$92,990+$19,843 vs state
Mean household income	$111,116
Per-capita income	$43,239
Poverty rate	3.1%-3.8% vs state
Unemployment rate	2.1%
Employment-to-population	66.4%

Top Industries by Employment

Professional & business services

22.7%

Information

15.2%

Construction

9.2%

Manufacturing

7.5%

Finance & real estate

7.4%

Education & health care

5.5%

Arts, entertainment & food

5.3%

Retail trade

5.2%

The largest employment sector in Warren County is professional & business services, accounting for 22.7% of workers.

How residents commute

0.0%

Drive alone

2.6%

Carpool

76.7%

Public transit

13.6%

Work from home

24.2 min

Avg commute

Housing

$252,800+$56,900 vs state

Median home value

$975

Median rent

83.0%

Homeownership rate

21,473

Total housing units

94.2%

Occupied

5.8%

Vacant

17.0%

Renter-occupied

Social & access

97.8%

With health insurance

96.4%

With broadband internet

18.2%

Foreign-born

7.1%

Veterans (18+)

10.6%

With a disability

97.0%

Speak language other than English at home

Education

96.7%

High School+

32.7%

Bachelor's+

Largest cities in Iowa

Des Moines (212,464)Cedar Rapids (136,859)Davenport (101,083)Sioux City (85,651)Iowa City (75,264)Ankeny (70,542)West Des Moines (69,893)Waterloo (66,947)Ames (66,112)Council Bluffs (62,564)All Iowa cities →

Other counties in Iowa

Polk County (497,441)Linn County (229,463)Scott County (174,302)Johnson County (154,881)Black Hawk County (130,693)Woodbury County (105,760)Dallas County (104,136)Dubuque County (98,948)Story County (98,592)Pottawattamie County (93,407)All Iowa counties →

Part of Iowa

Iowa demographic profile All Iowa data →

Metro areas in Iowa

Omaha (972,840)Des Moines (720,331)Davenport (381,864)Cedar Rapids (275,960)Iowa City (177,420)Waterloo (168,163)Sioux City (144,007)Ames (125,261)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Warren County, Iowa has a population of 53,484 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Iowa. Population density is 94 people per square mile.

The population of Warren County has grown 21.6% since 2010 (46,341 → 56,343), a +1.41% annualized rate.

The median household income in Warren County, Iowa is $92,990, with mean (average) household income of $111,116 and per-capita income of $43,239. 3.1% of residents live below the federal poverty level.

In Warren County, the largest racial and ethnic groups are White (93.8%), Hispanic or Latino (1.2%), Black or African American (0.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Warren County, Iowa is 38.7 years. Residents are 50.3% female and 49.7% male.

The median home value in Warren County is $252,800 and median monthly rent is $975. 83.0% of occupied housing units are owner-occupied. The county has 21,473 total housing units, 5.8% of which are vacant.

The largest employment sector in Warren County, Iowa is professional, scientific, and management services, employing 22.7% of workers. The unemployment rate is 2.1%.

Des Moines is among the largest cities associated with Warren County, Iowa, with a population of 212,464.