• county
  • FIPS 19181
  • Largest town: Indianola

Warren County, Iowa

Warren County had 56,343 residents in the Census Vintage 2024 estimate, on 569.7 square miles of land. It ranks 11th of 99 in Iowa by population and 49th by land area.

Population
56,343
#11 of 99 in Iowa · #932 in US
Area
569.7 sq mi
#49 of 99 in Iowa · #1,781 in US
Density
99 / sq mi
#10 of 99 in Iowa · #922 in US
Median household income
$92,695
#2 of 99 in Iowa · #210 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Warren County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Warren County

Warren County population, land area and income

Warren County had 56,343 residents in the Census Vintage 2024 estimate, on 569.7 square miles of land. It ranks 11th of 99 in Iowa by population and 49th by land area. That works out to 98.9 people per square mile, near the US average of 96.3, and above the national county median.

The median county-equivalent in Iowa has 15,008 residents, so Warren County is 3.8 times that size.

Its SAIPE 2023 median household income of $92,695 is in the top tenth among 3,143 counties with an estimate.

National rank among 3,144

Population

56,343

3144th1st

932nd of 3,144 (US)

Land area

570 sq mi

3144th1st

1781st of 3,144 (US)

Density

98.9 / sq mi

3144th1st

922nd of 3,144 (US)

Median household income

$92,695

3143rd1st

210th of 3,143 (US)

Rank within Iowa (99)

Population

56,343

99th1st

11th of 99 (IA)

Land area

570 sq mi

99th1st

49th of 99 (IA)

Density

98.9 / sq mi

99th1st

10th of 99 (IA)

Median household income

$92,695

99th1st

2nd of 99 (IA)

How Warren County's population changed since 2020

Warren County gained 3,752 residents between the July 2020 and July 2024 estimates, a rise of 7.1%. That ranks 2nd of 99 in Iowa for growth. The median Iowa county changed by -0.6%, and the state as a whole by +1.6%.

Since the April 2020 estimates base, Warren County recorded 2,530 births and 2,201 deaths, a natural change of +329. Net international migration added +130 and net domestic migration, people moving to or from other US counties, came to +3,480. The largest single component was domestic migration, which added 3,480 people.

52.6k202053.5k202154.3k202255.3k202356.3k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,530
Deaths
2,201
Net international migration
+130
Net domestic migration
+3,480
Change, July 2023 to July 2024
+1,045

Where Warren County is

The Census internal point of Warren County is at 41.332400, -93.568800. It sits in UTM zone 15N. The map shades Iowa's 99 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Warren County outlined. Dots are towns of 1,000+ people with residents in it.

Monroe County: -2.9%Worth County: -1.7%Buena Vista County: +0.0%Jasper County: +0.8%Van Buren County: -0.0%Hardin County: -2.2%Ida County: -3.1%Marshall County: +0.8%Fayette County: -1.5%Ringgold County: -0.8%Wapello County: +1.0%Webster County: -0.2%Adams County: -2.8%Buchanan County: +0.6%Cerro Gordo County: -1.2%Lucas County: +1.6%Emmet County: -1.9%Floyd County: -3.8%Crawford County: -0.7%Linn County: +0.6%Montgomery County: -2.6%Polk County: +4.7%Cherokee County: +0.0%Bremer County: +1.3%Grundy County: +0.5%Adair County: -0.8%Cedar County: -1.4%Story County: +3.9%Mahaska County: -0.6%Davis County: +0.9%Clay County: +0.8%Johnson County: +4.6%Greene County: -1.0%Palo Alto County: -2.0%Benton County: +1.0%Cass County: -0.7%Wright County: -1.5%Audubon County: -2.1%Henry County: -5.3%Boone County: +0.1%Appanoose County: -1.4%Washington County: +0.4%Chickasaw County: -2.2%Poweshiek County: -0.9%Osceola County: -2.6%Wayne County: +1.8%Mitchell County: +0.4%Jefferson County: +0.5%Union County: -1.4%Butler County: -1.2%Hancock County: -1.3%Marion County: +1.9%Delaware County: +0.9%Humboldt County: +0.2%Sioux County: +1.8%Des Moines County: -1.1%O'Brien County: +0.8%Clayton County: -0.6%Black Hawk County: +1.0%Winnebago County: -2.6%Harrison County: +0.4%Decatur County: -1.0%Pocahontas County: -0.9%Lyon County: +3.8%Iowa County: -1.4%Franklin County: +0.3%Dickinson County: +2.2%Madison County: +3.2%Allamakee County: +0.8%Jones County: +2.2%Carroll County: -1.6%Kossuth County: -2.6%Hamilton County: -1.0%Howard County: -1.4%Page County: -1.1%Guthrie County: +1.5%Tama County: -1.8%Monona County: -3.6%Clarke County: -2.1%Lee County: -3.4%Mills County: +2.1%Sac County: -2.7%Scott County: +0.6%Keokuk County: -1.6%Jackson County: -0.3%Warren County: +7.1%Calhoun County: -1.9%Shelby County: +0.8%Fremont County: -1.1%Dubuque County: -0.1%Louisa County: -1.8%Taylor County: -0.6%Woodbury County: +1.2%Clinton County: -0.9%Winneshiek County: -1.6%Pottawattamie County: -0.1%Plymouth County: +0.5%Muscatine County: -2.4%Dallas County: +14.7%
Change 2020 to 2024
  1. < -1.9%
  2. < -1.0%
  3. < +0.0%
  4. < +0.9%
  5. ≥ +0.9%
no data

Orange pin: Warren County internal point. Dark pin: Des Moines.

Internal point

Decimal
41.332400, -93.568800
DMS
41°19'56.64"N 93°34'7.68"W
UTM
15N 452404.1E 4575813.7N
Geohash
9zm7nu368
Plus code
86H88CJJ+XF

Towns in Warren County

5 incorporated places of 1,000+ people have residents in Warren County, 36,439 people together, or 65% of the county. Each figure counts only the part of the town inside Warren County; towns marked "part" extend into another county. The largest is Indianola with 16,297.

  1. 01Indianola16,297
  2. 02Norwalk15,396
  3. 03Carlisle (part)4,311
  4. 04West Des Moines (part)239
  5. 05Des Moines (part)196
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Warren County

The Census 2024 county adjacency file lists 6 neighbors for Warren County. The most populous is Polk County, IA, with 516,185 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 18.0 miles N of Warren County's internal point in a straight line. The nearest place of 100,000 or more is Des Moines, IA (population 213,096), 16.7 miles away. The nearest place of 10,000 or more is Indianola, IA (population 16,297), 2.1 miles away.

Warren County FIPS code

The FIPS code of Warren County is 19181: state code 19 for Iowa plus county code 181. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $92,695.

Questions people ask

What is the population of Warren County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 56,343. That is up 3,752 people (7.1%) from the July 2020 estimate of 52,591.

What is the FIPS code of Warren County?

19181. The first two digits (19) are Iowa; the last three (181) identify the county.

What is the largest town in Warren County?

Indianola, with 16,297 residents inside Warren County in 2024.

Which counties border Warren County?

6 county-equivalents border it in the Census 2024 adjacency file: Polk County, IA; Dallas County, IA; Marion County, IA; Madison County, IA; Clarke County, IA; Lucas County, IA.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.