• county
  • FIPS 19189
  • Largest town: Forest City

Winnebago County, Iowa

Winnebago County had 10,383 residents in the Census Vintage 2024 estimate, on 400.5 square miles of land. It ranks 71st of 99 in Iowa by population and 95th by land area.

Population
10,383
#71 of 99 in Iowa · #2,384 in US
Area
400.5 sq mi
#95 of 99 in Iowa · #2,525 in US
Density
26 / sq mi
#51 of 99 in Iowa · #2,041 in US
Median household income
$65,086
#69 of 99 in Iowa · #1,363 in US

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

Winnebago County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Winnebago County

Winnebago County population, land area and income

Winnebago County had 10,383 residents in the Census Vintage 2024 estimate, on 400.5 square miles of land. It ranks 71st of 99 in Iowa by population and 95th by land area. That works out to 25.9 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; Winnebago County is somewhat smaller.

Its SAIPE 2023 median household income of $65,086 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

10,383

3144th1st

2384th of 3,144 (US)

Land area

400 sq mi

3144th1st

2525th of 3,144 (US)

Density

25.9 / sq mi

3144th1st

2041st of 3,144 (US)

Median household income

$65,086

3143rd1st

1363rd of 3,143 (US)

Rank within Iowa (99)

Population

10,383

99th1st

71st of 99 (IA)

Land area

400 sq mi

99th1st

95th of 99 (IA)

Density

25.9 / sq mi

99th1st

51st of 99 (IA)

Median household income

$65,086

99th1st

69th of 99 (IA)

How Winnebago County's population changed since 2020

Winnebago County lost 273 residents between the July 2020 and July 2024 estimates, a drop of 2.6%. That ranks 88th 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, Winnebago County recorded 400 births and 561 deaths, a natural change of -161. Net international migration added +18 and net domestic migration, people moving to or from other US counties, came to -151. The largest single component was natural change, which removed 161 people.

10.7k202010.7k202110.7k202210.6k202310.4k2024
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
400
Deaths
561
Net international migration
+18
Net domestic migration
-151
Change, July 2023 to July 2024
-180

Where Winnebago County is

The Census internal point of Winnebago County is at 43.378100, -93.743500. 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 Winnebago 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: Winnebago County internal point. Dark pin: Des Moines.

Internal point

Decimal
43.378100, -93.743500
DMS
43°22'41.16"N 93°44'36.60"W
UTM
15N 439771.4E 4803071.9N
Geohash
9ztqfbdpd
Plus code
86M897H4+6J

Towns in Winnebago County

2 incorporated places of 1,000+ people have residents in Winnebago County, 5,917 people together, or 57% of the county. Each figure counts only the part of the town inside Winnebago County; towns marked "part" extend into another county. The largest is Forest City with 3,840.

  1. 01Forest City (part)3,840
  2. 02Lake Mills2,077
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Winnebago County

The Census 2024 county adjacency file lists 6 neighbors for Winnebago County, including 2 across a state line. The most populous is Cerro Gordo County, IA, with 42,493 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 123.7 miles S of Winnebago County's internal point in a straight line. The nearest place of 100,000 or more is Rochester, MN (population 123,624), 77.0 miles away. The nearest place of 10,000 or more is Albert Lea, MN (population 18,159), 26.9 miles away.

Winnebago County FIPS code

The FIPS code of Winnebago County is 19189: state code 19 for Iowa plus county code 189. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $65,086.

Questions people ask

What is the population of Winnebago County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 10,383. That is down 273 people (2.6%) from the July 2020 estimate of 10,656.

What is the FIPS code of Winnebago County?

19189. The first two digits (19) are Iowa; the last three (189) identify the county.

What is the largest town in Winnebago County?

Forest City, with 3,840 residents inside Winnebago County in 2024 (4,199 across all 2 counties it spans).

Which counties border Winnebago County?

6 county-equivalents border it in the Census 2024 adjacency file: Cerro Gordo County, IA; Freeborn County, MN; Kossuth County, IA; Faribault County, MN; Hancock County, IA; Worth 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.