• county
  • FIPS 19027
  • Largest town: Carroll

Carroll County, Iowa

Carroll County had 20,407 residents in the Census Vintage 2024 estimate, on 569.5 square miles of land. It ranks 32nd of 99 in Iowa by population and 51st by land area.

Population
20,407
#32 of 99 in Iowa · #1,804 in US
Area
569.5 sq mi
#51 of 99 in Iowa · #1,784 in US
Density
36 / sq mi
#34 of 99 in Iowa · #1,779 in US
Median household income
$61,806
#81 of 99 in Iowa · #1,657 in US

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

Carroll County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Carroll County

Carroll County population, land area and income

Carroll County had 20,407 residents in the Census Vintage 2024 estimate, on 569.5 square miles of land. It ranks 32nd of 99 in Iowa by population and 51st by land area. That works out to 35.8 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Iowa has 15,008 residents; Carroll County is somewhat larger.

Its SAIPE 2023 median household income of $61,806 is below the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

20,407

3144th1st

1804th of 3,144 (US)

Land area

569 sq mi

3144th1st

1784th of 3,144 (US)

Density

35.8 / sq mi

3144th1st

1779th of 3,144 (US)

Median household income

$61,806

3143rd1st

1657th of 3,143 (US)

Rank within Iowa (99)

Population

20,407

99th1st

32nd of 99 (IA)

Land area

569 sq mi

99th1st

51st of 99 (IA)

Density

35.8 / sq mi

99th1st

34th of 99 (IA)

Median household income

$61,806

99th1st

81st of 99 (IA)

How Carroll County's population changed since 2020

Carroll County lost 327 residents between the July 2020 and July 2024 estimates, a drop of 1.6%. That ranks 75th 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, Carroll County recorded 1,024 births and 1,218 deaths, a natural change of -194. Net international migration added +76 and net domestic migration, people moving to or from other US counties, came to -243. The largest single component was domestic migration, which removed 243 people.

20.7k202020.8k202120.6k202220.5k202320.4k2024
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
1,024
Deaths
1,218
Net international migration
+76
Net domestic migration
-243
Change, July 2023 to July 2024
-105

Where Carroll County is

The Census internal point of Carroll County is at 42.039500, -94.867600. 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 Carroll 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: Carroll County internal point. Dark pin: Des Moines.

Internal point

Decimal
42.039500, -94.867600
DMS
42°02'22.20"N 94°52'3.36"W
UTM
15N 345422.6E 4655849.2N
Geohash
9zkx1jp9b
Plus code
86J724QJ+RX

Towns in Carroll County

4 incorporated places of 1,000+ people have residents in Carroll County, 13,913 people together, or 68% of the county. Each figure counts only the part of the town inside Carroll County; towns marked "part" extend into another county. The largest is Carroll with 10,125.

  1. 01Carroll10,125
  2. 02Manning1,390
  3. 03Coon Rapids1,258
  4. 04Glidden1,140
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Carroll County

The Census 2024 county adjacency file lists 7 neighbors for Carroll County. The most populous is Crawford County, IA, with 16,378 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 72.1 miles ESE of Carroll County's internal point in a straight line. The nearest place of 100,000 or more is Des Moines, IA (population 213,096), 72.3 miles away. The nearest place of 10,000 or more is Carroll, IA (population 10,125), 2.1 miles away.

Carroll County FIPS code

The FIPS code of Carroll County is 19027: state code 19 for Iowa plus county code 027. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $61,806.

Questions people ask

What is the population of Carroll County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 20,407. That is down 327 people (1.6%) from the July 2020 estimate of 20,734.

What is the FIPS code of Carroll County?

19027. The first two digits (19) are Iowa; the last three (027) identify the county.

What is the largest town in Carroll County?

Carroll, with 10,125 residents inside Carroll County in 2024.

Which counties border Carroll County?

7 county-equivalents border it in the Census 2024 adjacency file: Crawford County, IA; Shelby County, IA; Guthrie County, IA; Calhoun County, IA; Sac County, IA; Greene County, IA; Audubon 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.