• county
  • FIPS 19191
  • Largest town: Decorah

Winneshiek County, Iowa

Winneshiek County had 19,723 residents in the Census Vintage 2024 estimate, on 689.8 square miles of land. It ranks 33rd of 99 in Iowa by population and 17th by land area.

Population
19,723
#33 of 99 in Iowa · #1,843 in US
Area
689.8 sq mi
#17 of 99 in Iowa · #1,358 in US
Density
29 / sq mi
#45 of 99 in Iowa · #1,970 in US
Median household income
$80,932
#8 of 99 in Iowa · #447 in US

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

Winneshiek County within Iowa. Pin: Des Moines.

Measure from here

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Winneshiek County population, land area and income

Winneshiek County had 19,723 residents in the Census Vintage 2024 estimate, on 689.8 square miles of land. It ranks 33rd of 99 in Iowa by population and 17th by land area. That works out to 28.6 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; Winneshiek County is somewhat larger.

Its SAIPE 2023 median household income of $80,932 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

19,723

3144th1st

1843rd of 3,144 (US)

Land area

690 sq mi

3144th1st

1358th of 3,144 (US)

Density

28.6 / sq mi

3144th1st

1970th of 3,144 (US)

Median household income

$80,932

3143rd1st

447th of 3,143 (US)

Rank within Iowa (99)

Population

19,723

99th1st

33rd of 99 (IA)

Land area

690 sq mi

99th1st

17th of 99 (IA)

Density

28.6 / sq mi

99th1st

45th of 99 (IA)

Median household income

$80,932

99th1st

8th of 99 (IA)

How Winneshiek County's population changed since 2020

Winneshiek County lost 328 residents between the July 2020 and July 2024 estimates, a drop of 1.6%. That ranks 76th 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, Winneshiek County recorded 802 births and 911 deaths, a natural change of -109. Net international migration added +134 and net domestic migration, people moving to or from other US counties, came to -375. The largest single component was domestic migration, which removed 375 people.

20.1k202019.9k202119.9k202219.7k202319.7k2024
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
802
Deaths
911
Net international migration
+134
Net domestic migration
-375
Change, July 2023 to July 2024
-5

Where Winneshiek County is

The Census internal point of Winneshiek County is at 43.293000, -91.850800. 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 Winneshiek 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: Winneshiek County internal point. Dark pin: Des Moines.

Internal point

Decimal
43.293000, -91.850800
DMS
43°17'34.80"N 91°51'2.88"W
UTM
15N 593223.5E 4793993.9N
Geohash
9zwwmck21
Plus code
86MC74VX+6M

Towns in Winneshiek County

2 incorporated places of 1,000+ people have residents in Winneshiek County, 8,554 people together, or 43% of the county. Each figure counts only the part of the town inside Winneshiek County; towns marked "part" extend into another county. The largest is Decorah with 7,454.

  1. 01Decorah7,454
  2. 02Calmar1,100
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Winneshiek County

The Census 2024 county adjacency file lists 7 neighbors for Winneshiek County, including 2 across a state line. The most populous is Fillmore County, MN, with 21,502 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 147.7 miles SW of Winneshiek County's internal point in a straight line. The nearest place of 100,000 or more is Rochester, MN (population 123,624), 58.9 miles away. The nearest place of 10,000 or more is La Crosse, WI (population 51,049), 48.3 miles away.

Winneshiek County FIPS code

The FIPS code of Winneshiek County is 19191: state code 19 for Iowa plus county code 191. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $80,932.

Questions people ask

What is the population of Winneshiek County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 19,723. That is down 328 people (1.6%) from the July 2020 estimate of 20,051.

What is the FIPS code of Winneshiek County?

19191. The first two digits (19) are Iowa; the last three (191) identify the county.

What is the largest town in Winneshiek County?

Decorah, with 7,454 residents inside Winneshiek County in 2024.

Which counties border Winneshiek County?

7 county-equivalents border it in the Census 2024 adjacency file: Fillmore County, MN; Fayette County, IA; Houston County, MN; Clayton County, IA; Allamakee County, IA; Chickasaw County, IA; Howard 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.