Warren County, IA demographics:
population, income, and more

Total population
54,409
1.7% year-over-year change
Median household income
$94,588/yr
1.7% year-over-year change
Housing units
21,921
2.1% year-over-year change

Warren County population

How many people live in Warren County

Warren County is home to 54,409 residents, according to the most recent Census data. Gender-wise, 49.7% of Warren County locals are male, and 50.3% are female.

Total population
54,409
1.7% year-over-year change
Gender ratio
Male
49.7%
27,039
Female
50.3%
27,370
Value Percent YoY change
Male 27,039 49.7% 1.7%
Female 27,370 50.3% 1.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Warren County is 39, with the population distributed as follows: about 20% are children under 15, then 13.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 25.5% of the population, while another 24.4% fall into the 45 to 64 bracket. Finally, around 16.8% are 65 or older.

Median age
38.8
Age breakdown
Under 15
20%
15 to 24
13.4%
25 to 44
25.5%
45 to 64
24.4%
Over 65
16.8%
Value Percent YoY change
Under 15 10,885 20% 0.7%
15 to 24 7,268 13.4% 1.8%
25 to 44 13,869 25.5% 2.7%
45 to 64 13,275 24.4% 0.4%
Over 65 9,112 16.8% 3.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Warren County, 97.8% of the population are US-born citizens, while 1.5% have gained naturalized citizenship. At the same time, 0.7% of residents are non-citizens. As for race, 93% of locals are Caucasian, 0.7% are African American and 0.8% have Asian roots. There’s also a share of 4.6% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.8%
Non-U.S.-born citizens
1.5%
Non-citizens
0.7%
Value Percent YoY change
U.S.-born citizens 53,230 97.8% 1.8%
Non-U.S.-born citizens 814 1.5% -8.9%
Non-citizens 365 0.7% 20.1%
Racial breakdown
White
93%
Black or African American
0.7%
American Indian and Alaska Native
0.3%
Asian
0.8%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.6%
Other
0.6%
Value Percent
White 50,576 93%
Black or African American 405 0.7%
American Indian and Alaska Native 154 0.3%
Asian 407 0.8%
Native Hawaiian and other Pacific Islander 8 0%
Two or more races 2,530 4.6%
Other 329 0.6%

Households in Warren County

A peek inside Warren County households

Warren County has 20,679 households, with an average of 3 members in each. Of these, 69.3% are families, while the remaining 30.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
20,679
2.3% year-over-year change
Average people per household
3
Non-family households
6,343
Family households
14,336
Value Percent YoY change
Non-family households 6,343 30.7% 7.6%
Family households 14,336 69.3% 0.1%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Warren County

The housing landscape of Warren County

Warren County's housing consists of 21,921 units, with 76.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 5.6% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 3.3% of the housing landscape.

Housing units
21,921
2.1% year-over-year change
Housing types
Value Percent
1 unit, detached 16,814 76.7%
1 unit, attached 1,228 5.6%
2 units 185 0.8%
3 or 4 units 557 2.5%
5 to 9 units 723 3.3%
10 to 19 units 610 2.8%
20 to 49 units 705 3.2%
50 or more units 378 1.7%
Mobile home 717 3.3%
Boat, RV, van, etc. 4 0%
Homes built since 2020
705
62.8% year-over-year change

The age of buildings in Warren County

In Warren County, the median construction year is 1985. About 11% of homes were built before the 1940s, with another 2.3% going up by 1949. Most development happened in the second half of the 20th century. Then, 16.8% of homes were added from 2000 to 2009, 15.8% between 2010 and 2019, and 3.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 2,400 11% -3.5%
Built between 1940 and 1949 510 2.3% 18.3%
Built between 1950 and 1959 1,320 6% -6.8%
Built between 1960 and 1969 2,112 9.6% -2.5%
Built between 1970 and 1979 3,672 16.8% 2.2%
Built between 1980 and 1989 1,952 8.9% 7.1%
Built between 1990 and 1999 2,101 9.6% -7.2%
Built between 2000 and 2009 3,679 16.8% -3.8%
Built between 2010 and 2019 3,470 15.8% 14.3%
Built in 2020 or later 705 3.2% 62.8%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Warren County occupancy rates

Out of the 20,679 occupied housing units in Warren County, 82.3% are owner-occupied, while 17.7% are lived in by tenants. Meanwhile, 5.7% of all homes on the local market sit vacant.

Occupied housing units
20,679
2.3% year-over-year change
Occupancy breakdown
Renter occupied
3,652
Owner occupied
17,027
Value Percent YoY
change
Renter occupied 3,652 17.7% 6.4%
Owner occupied 17,027 82.3% 1.4%
Unoccupied housing units
5.7%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Warren County housing costs

Housing costs in Warren County come to a median of $1,323 per month, while tenants specifically pay a median gross rent of $973.

Median housing costs per month
$1,323/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Warren County
$973/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Warren County

Warren County education at a glance

About 31% of the population in Warren County went to high school, while 25.1% pursued college studies. Another 12.5% earned an associate degree and 21.9% hold a bachelor’s. Meanwhile, 8.6% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 374 0.9% 29.0%
High school diploma 12,745 31% -2.0%
College diploma 10,303 25.1% 3.9%
Associate degree 5,156 12.5% 4.2%
Bachelor's degree 8,991 21.9% 4.9%
Graduate degree 3,548 8.6% -0.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Warren County

How much people earn in Warren County

The average annual household income in Warren County was $111,331 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0.2% change from the previous year. At the same time, the median income stood at $94,588, reflecting a +1.7% shift over the same period.

Average household income in Warren County
$111,331/year
0.2% year-over-year change
Median household income in Warren County
$94,588/year
1.7% year-over-year change

Warren County income by age

In Warren County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $107,416. Those with someone between 45 and 64 in charge, often well established professionally, earn $117,184 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $57,589, while those led by someone over 65, many of whom may be retired, have about $58,661 in earnings. Overall, 94.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $57,589 38.9%
25 - 44 $107,416 4.6%
45 - 64 $117,184 1.1%
Over 65 $58,661 -0.1%
Above poverty level
49,450
Below poverty level
2,703
Value Percent YoY
change
Above poverty level 49,450 94.8% 2.2%
Below poverty level 2,703 5.2% -1.0%

Employment in Warren County

Workforce and job types in Warren County

The job market in Warren County is powered by 28,297 working residents, spread across a range of industries and roles. 75.5% of the working population are employed in professional or administrative positions, while 24.5% are in hands-on or service-based jobs. Also, 9.2% run their own businesses, 68.2% are employed by private companies, and 13.8% work in the public sector.

Workforce demographics

Working population
28,297
1.6% year-over-year change
White collar
21,370
Blue collar
6,927
Value Percent YoY change
White collar 21,370 75.5% 3.0%
Blue collar 6,927 24.5% -2.6%
Employer type
Self employees
9.2%
Private companies
68.2%
Governmental workers
13.8%
Not for profit companies
8.8%
Value Percent YoY change
Self employees 2,600 9.2% 6.6%
Private companies 19,304 68.2% 1.7%
Governmental workers 3,899 13.8% -1.0%
Not for profit companies 2,494 8.8% 0.4%
Unemployment rate
3.4%
14.3% year-over-year change

Available workforce

The unemployment rate in Warren County stands at 3.4%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Warren County

How people get around in Warren County

In Warren County, the average commute time is 24 minutes. Commuting methods vary: 81.2% of residents travel by personal vehicle and 2.5% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
24 min
Means of transportation
Value Percent YoY change
Car 22,648 81.2% 0.1%
Motorcycle 5 0% -70.6%
Bicycle 21 0.1% 5.0%
Walk 710 2.5% 0.8%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Warren County by zipcode?

Zipcode Population Number of households Median income Average income
50001 650 232 $131,875 $147,497
50047 6,690 2,312 $106,389 $114,172
50061 2,123 728 $130,714 $179,617
50118 920 350 $73,750 $91,887
50125 20,121 7,685 $84,848 $99,925
50139 1,025 434 $72,400 $86,283
50160 569 238 $57,500 $69,582
50166 2,023 721 $107,279 $116,655
50210 1,487 583 $87,813 $124,489
50211 16,835 6,546 $103,712 $122,442

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FAQs about Warren County demographics 

What is the total population of Warren County?

Warren County has a total population of 54,409 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +1.7% compared to a year ago.

What is the gender ratio in Warren County?

The gender ratio in Warren County is as follows:
  • 49.7% males (27,039 residents)
  • 50.3% females (27,370 residents)

What is the median age in Warren County?

The median age in Warren County is 38.8.

What is the age distribution of the population in Warren County?

The age distribution in Warren County is as follows:
  • Under 15: 20% (10,885 residents)
  • Ages 15-24: 13.4% (7,268 residents)
  • Ages 25-44: 25.5% (13,869 residents)
  • Ages 45-64: 24.4% (13,275 residents)
  • Over 65: 16.8% (9,112 residents)

What is the racial and ethnic makeup of Warren County?

The racial and ethnic makeup of Warren County is as follows:
  • White: 93% (50,576 residents)
  • Black or African American: 0.7% (405 residents)
  • American Indian and Alaska Native: 0.3% (154 residents)
  • Asian: 0.8% (407 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (8 residents)
  • Two or More Races: 4.6% (2,530 residents)
  • Other: 0.6% (329 residents)

What percentage of the population in Warren County are U.S.-born citizens?

U.S.-born citizens represent 97.8% of the population in Warren County.

How many housing units are there in Warren County?

There are 21,921 housing units in Warren County, reflecting a +2.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Warren County and what is the average household size?

Warren County has a total of 20,679 households, with an average of 3 people in each.

What is the median household income in Warren County?

Warren County has a median household income of $94,588, representing a +1.7% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Warren County?

The employment rate is 96.6% in Warren County, with a workforce of 28,297 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 75.5% (21,370 residents)
  • Blue-collar workers: 24.5% (6,927 residents)

Places of employment:
  • Self-employed: 9.2% (2,600 residents)
  • Private companies: 68.2% (19,304 residents)
  • Governmental workers: 13.8% (3,899 residents)
  • Not-for-profit companies: 8.8% (2,494 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025