Warren County is home to 54,409 people in Iowa. That puts it in the top 2% of US counties for household income. Owners hold 82% of the housing stock. 2% of residents were born outside the United States. 13,738 more people live here than in 2000. That is roughly 26% ahead of the Iowa median.
At a glance
Wealthier
median household income $94,588, above the US median
US median: $82,259
Mid-age
median age 38.8
US median: 38.9
Average education
33% hold a bachelor's degree
US average: 36%
Less affordable
home values up 44%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Warren County
What changed most since 1990
White share98.7% → 91.9%(−6.8 pts)US over the same years: −17.8 pts
Hispanic share0.7% → 3.7%(+3.0 pts)US over the same years: +9.9 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)26.8%(731)
US avg: 26.4%
Gulf War (1990s)21.9%(598)
US avg: 24.3%
Vietnam era27.4%(747)
US avg: 33.1%
Korean War6.6%(181)
US avg: 4.5%
World War II2.2%(61)
US avg: 1%
Share of the 2,728 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Warren County, decade by decade
Warren County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
36,033
$77,887
$142,564
16.2%
3.2
2000
40,671
$91,719
$186,902
21.2%
6.3
2010
46,225
$89,240
$217,080
26.7%
10.3
2020
52,403
$97,338
$237,681
31.3%
20.4
2024
54,409
$94,588
$269,600
33.3%
19.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
