Skip to main content
County ProfileIA

Warren County

Population: 52,403 · 13 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
52,403
People
Median age
38.8
Housing
Total households
20,679
Income
Median household income
$94,588
Housing
Total housing units
21,921
Employment
Employment rate
66.1%
Education
Bachelor’s degree or higher
33.3%
Healthcare
Insured population
98%
County details
Local time 02:14:43(CT)
NameWarren
Total ZIP codes13total
ZIP codes (by type)
11 Standard2 PO Box
Area code515, 641
TimezoneCentral Time (CT)
Coordinates41.3324459, -93.5687512
Land area569.7 sq miles(1,475.4 km²)

Map of Warren county, Iowa with ZIP codes

Map of Warren County, Iowa and ZIP codes

Cities and Communities in Warren County

Compare the largest cities in Warren County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Indianola15,833$75,4531ZIPs
Norwalk12,799$102,7221ZIPs
Carlisle4,160$109,1911ZIPs
Prole1,0291ZIPs
Milo778$79,9041ZIPs
Hartford733$70,0001ZIPs
New Virginia498$77,1881ZIPs
Cumming436$162,8751ZIPs
Martensdale421$57,5001ZIPs
Lacona345$70,1001ZIPs
Ackworth115$111,0941ZIPs
Saint Marys108$77,5001ZIPs
Liberty Center761ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Warren County

Review the most populated postal areas across Warren County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
50125Indianola$84,84820,906
50211Norwalk$103,71215,158
50047Carlisle$106,3896,021
50061Cumming$130,7141,973
50210New Virginia$87,8131,752
50166Milo$107,2791,511
50139Lacona$72,4001,172
50229Prole$123,1641,029
50118Hartford$73,750931
50001Ackworth$131,875695
50160Martensdale$57,500421
50241Saint Marys$77,500108
50145Liberty Center$50,96276

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS