• county
  • FIPS 19143
  • Largest town: Sibley

Osceola County, Iowa

Osceola County had 6,036 residents in the Census Vintage 2024 estimate, on 398.7 square miles of land. It ranks 95th of 99 in Iowa by population and 97th by land area.

Population
6,036
#95 of 99 in Iowa · #2,729 in US
Area
398.7 sq mi
#97 of 99 in Iowa · #2,533 in US
Density
15 / sq mi
#87 of 99 in Iowa · #2,393 in US
Median household income
$72,569
#34 of 99 in Iowa · #818 in US

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

Osceola County within Iowa. Pin: Des Moines.

Measure from here

Tools and pages that start from Osceola County

Osceola County population, land area and income

Osceola County had 6,036 residents in the Census Vintage 2024 estimate, on 398.7 square miles of land. It ranks 95th of 99 in Iowa by population and 97th by land area. That works out to 15.1 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Iowa has 15,008 residents, so Osceola County has 40% of the typical county's population.

Its SAIPE 2023 median household income of $72,569 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

6,036

3144th1st

2729th of 3,144 (US)

Land area

399 sq mi

3144th1st

2533rd of 3,144 (US)

Density

15.1 / sq mi

3144th1st

2393rd of 3,144 (US)

Median household income

$72,569

3143rd1st

818th of 3,143 (US)

Rank within Iowa (99)

Population

6,036

99th1st

95th of 99 (IA)

Land area

399 sq mi

99th1st

97th of 99 (IA)

Density

15.1 / sq mi

99th1st

87th of 99 (IA)

Median household income

$72,569

99th1st

34th of 99 (IA)

How Osceola County's population changed since 2020

Osceola County lost 164 residents between the July 2020 and July 2024 estimates, a drop of 2.6%. That ranks 91st 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, Osceola County recorded 276 births and 326 deaths, a natural change of -50. Net international migration added +81 and net domestic migration, people moving to or from other US counties, came to -192. The largest single component was domestic migration, which removed 192 people.

6,20020206,17420216,07320226,01620236,0362024
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
276
Deaths
326
Net international migration
+81
Net domestic migration
-192
Change, July 2023 to July 2024
+20

Where Osceola County is

The Census internal point of Osceola County is at 43.378500, -95.633800. 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 Osceola 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: Osceola County internal point. Dark pin: Des Moines.

Internal point

Decimal
43.378500, -95.633800
DMS
43°22'42.60"N 95°38'1.68"W
UTM
15N 286641.4E 4806217.3N
Geohash
9zeyzbcd4
Plus code
86M699H8+CF

Towns in Osceola County

One incorporated place of 1,000+ people has residents in Osceola County, 2,787 people together, or 46% of the county. Each figure counts only the part of the town inside Osceola County; towns marked "part" extend into another county. The largest is Sibley with 2,787.

  1. 01Sibley2,787
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Osceola County

The Census 2024 county adjacency file lists 7 neighbors for Osceola County, including 2 across a state line. The most populous is Sioux County, IA, with 36,554 residents. Distances run between Census internal points in a straight line.

Distance to Des Moines and the nearest big city

Des Moines is 161.1 miles SE of Osceola County's internal point in a straight line. The nearest place of 100,000 or more is Sioux Falls, SD (population 209,289), 56.2 miles away. The nearest place of 10,000 or more is Worthington, MN (population 13,754), 17.4 miles away.

Osceola County FIPS code

The FIPS code of Osceola County is 19143: state code 19 for Iowa plus county code 143. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $72,569.

Questions people ask

What is the population of Osceola County, Iowa?

The Census Vintage 2024 estimate for July 1, 2024 is 6,036. That is down 164 people (2.6%) from the July 2020 estimate of 6,200.

What is the FIPS code of Osceola County?

19143. The first two digits (19) are Iowa; the last three (143) identify the county.

What is the largest town in Osceola County?

Sibley, with 2,787 residents inside Osceola County in 2024.

Which counties border Osceola County?

7 county-equivalents border it in the Census 2024 adjacency file: Sioux County, IA; Nobles County, MN; Dickinson County, IA; Clay County, IA; O'Brien County, IA; Lyon County, IA; Jackson County, MN.

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.