Cherokee County area

Cherokee County, Iowa covers 577.1 square miles: 576.9 square miles of land and 0.163 square miles of water. Its county seat is Cherokee. An estimated 11,369 people lived there in 2025.

Official Census measurements · GEOID 190352026 Gazetteer · retrieved September 27, 2026
Land area576.9 mi²
Water area0.163 mi²
Population (2025)11,369
People per mi²20

County outline

Generalized outline of Cherokee County, Iowa
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Cherokee County is located

Cherokee County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 100% of Cherokee County’s measured area and water for 0%. Its combined area converts to 1,494.6 square kilometers or approximately 369,325 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land576.9071,494.182369,220.5
Water0.1630.422104.3
Total577.071,494.604369,324.8

How Cherokee County compares

By original Census land area, Cherokee County ranks #35 of 99 in Iowa and #1715 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.013 times the Iowa county-equivalent median of 569.6 square miles. It accounts for 1% of the combined county land area in the state.

See the complete Iowa ranking · What counts as a county equivalent?

Population and density of Cherokee County

The Census Bureau estimates that 11,369 people lived in Cherokee County on July 1, 2025. That ranks #2,400 of 3,222 county equivalents nationally and #66 of 99 in Iowa. Since the April 1, 2020 estimates base of 11,650, the population has declined by 281 (−2.4%), compared with +1.5% for Iowa as a whole.

With 576.9 square miles of land, that is 20 people per square mile (7.6 per km²), placing Cherokee County #2,338 nationally for density and #74 in Iowa. The median county equivalent has 47 people per square mile; the Iowa median is 26. Put another way, there are about 32 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate11,64811,53311,48611,58911,52211,369
Change—−115−47+103−67−153

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Cherokee County

8 incorporated places lie at least partly in Cherokee County. Together they are home to 8,036 people (70.7%); the other 3,333 (29.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Cherokee city, with 5,122 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Cherokee cityCounty seat5,122−1.3%6.833
Marcus city1,038−3.4%1.529
Aurelia city935−3.4%1.014
Quimby city236−4.1%0.407
Cleghorn city225−4.7%0.228
Washta city199−4.3%1.01
Meriden city168−2.3%0.113
Larrabee city113−3.4%0.13

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Cherokee County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Cherokee County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

15 ZIP Code Tabulation Areas have land in Cherokee County; 8 of them have most of their land inside the county, and the others mainly cover neighboring areas.

510025100551012510145102051025510295103551037510465104751048510495105851061

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Cherokee County

Cherokee County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Woodbury County (872.9 mi²) and the smallest is Ida County (431.5 mi²). Together with its neighbors, Cherokee County forms a block of 3,892.1 mi² of land, of which it holds 14.8%.

Map of Cherokee County and the 5 county equivalents that border it Buena Vista County, Iowa: 574.9 mi² landPlymouth County, Iowa: 862.8 mi² landO'Brien County, Iowa: 573 mi² landIda County, Iowa: 431.5 mi² landWoodbury County, Iowa: 872.9 mi² land
Cherokee County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. CherokeeCompare
Woodbury County872.91.5× largerCompare
Plymouth County862.81.5× largerCompare
Buena Vista County574.9about the sameCompare
O'Brien County573about the sameCompare
Ida County431.51.3× smallerCompare

How big is Cherokee County compared with U.S. states?

Cherokee County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.8 times as much. Iowa’s county land could hold about 97 areas the size of Cherokee County.

Land area: Cherokee County and the closest-sized states
Cherokee County576.9 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 24 miles (38.7 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Cherokee County?

Cherokee County has more land than 1,507 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Cherokee County576.9 mi²
Iowa median569.6 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Cherokee County at #1,853 nationally by total area, 138 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0%, compared with a national county-equivalent median of 1.2% — 1.1 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Cherokee County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1714Pocahontas County, Iowa577.3Compare
#1715Cherokee County, Iowa576.9This county
#1716Hamilton County, Iowa576.7Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 42.742737, -95.633262. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 1,494,181,136 m²; AWATER: 423,160 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Cherokee County?

Cherokee County, Iowa has 576.9 square miles (1,494.2 km²) of land and 0.163 square miles of water, for a total area of 577.1 square miles. It ranks #1715 of 3,222 U.S. county equivalents by land area.

Is Cherokee County the largest county in Iowa?

No. Cherokee County ranks #35 of 99 in Iowa by land area. The largest is Kossuth County, with 972.7 square miles of land.

What counties border Cherokee County?

Cherokee County shares a land border with Buena Vista County, Plymouth County, O'Brien County, Ida County, and Woodbury County.

What is the population of Cherokee County?

The Census Bureau estimates Cherokee County had 11,369 residents on July 1, 2025, ranking #2,400 of 3,222 county equivalents. That is 20 people per square mile of land.

What is the county seat of Cherokee County?

The county seat of Cherokee County is Cherokee.

What cities and towns are in Cherokee County?

Cherokee County has 8 incorporated places. The most populous five are Cherokee city, Marcus city, Aurelia city, Quimby city, and Cleghorn city; 3,333 residents live outside any incorporated place.

Is Cherokee County part of a metropolitan area?

No. Cherokee County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Cherokee County?

15 ZIP Code Tabulation Areas have land in Cherokee County, and 8 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Cherokee County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.8 times as much land.

How many acres of land are in Cherokee County?

The land measurement converts to approximately 369,220 acres. Including water, total area is approximately 369,325 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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