Cowley County area

Cowley County, Kansas covers 1,132.4 square miles: 1,125.7 square miles of land and 6.688 square miles of water. Its county seat is Winfield. An estimated 34,382 people lived there in 2025.

Official Census measurements · GEOID 200352026 Gazetteer · retrieved September 27, 2026
Land area1,125.7 mi²
Water area6.688 mi²
Population (2025)34,382
People per mi²31

County outline

Generalized outline of Cowley County, Kansas
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 Cowley County is located

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

Area breakdown

Land accounts for 99.4% of Cowley County’s measured area and water for 0.6%. Its combined area converts to 2,933 square kilometers or approximately 724,753 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,125.7382,915.648720,472.3
Water6.68817.3224,280.3
Total1,132.4262,932.97724,752.6

How Cowley County compares

By original Census land area, Cowley County ranks #7 of 105 in Kansas and #558 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.543 times the Kansas county-equivalent median of 729.7 square miles. It accounts for 1.4% of the combined county land area in the state.

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

Population and density of Cowley County

The Census Bureau estimates that 34,382 people lived in Cowley County on July 1, 2025. That ranks #1,362 of 3,222 county equivalents nationally and #15 of 105 in Kansas. Since the April 1, 2020 estimates base of 34,546, the population has declined by 164 (−0.5%), compared with +1.3% for Kansas as a whole.

With 1,125.7 square miles of land, that is 31 people per square mile (12 per km²), placing Cowley County #1,991 nationally for density and #26 in Kansas. The median county equivalent has 47 people per square mile; the Kansas median is 8.1. Put another way, there are about 21 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate34,52834,62334,44734,20434,25134,382
Change—+95−176−243+47+131

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 Cowley County

9 incorporated places lie at least partly in Cowley County. Together they are home to 25,608 people (74.5%); the other 8,774 (25.5%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Arkansas City city, with 11,800 residents in the county. The county seat, Winfield city, has 11,745 residents. By land, Winfield city is the largest at 11.1 mi².

Incorporated placePopulation 2025Since 2020Land mi²
Arkansas City city11,800−1.4%9.488
Winfield cityCounty seat11,745−0.3%11.1
Udall city645−2.3%0.545
Burden city509−0.6%0.517
Parkerfield city410+0.7%0.913
Dexter city233+3.6%0.277
Atlanta city163−2.4%0.479
Cambridge city92−1.1%0.175
Geuda Springs cityAlso in 1 other county11+10%0.344

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

Metropolitan area

Cowley County is a central county of the Arkansas City-Winfield, KS Micropolitan Statistical Area. Cowley County is the area’s only county equivalent, so the micro area has the same 1,125.7 square miles of land. By combined land it ranks #152 of 542 micropolitan areas, and #399 by population. It belongs to the Wichita-Arkansas City-Winfield, KS Combined Statistical Area.

ZIP codes

15 ZIP Code Tabulation Areas have land in Cowley County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

670056700867019670236702467038670396705167072671026711067119671316714667156

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 Cowley County

Cowley County shares a land border with 6 county equivalents, including 2 in Oklahoma. It has more land than 3 of them. The largest neighbor is Osage County (2,246.7 mi²) and the smallest is Chautauqua County (638.9 mi²). Together with its neighbors, Cowley County forms a block of 8,186.6 mi² of land, of which it holds 13.8%.

Map of Cowley County and the 6 county equivalents that border it Butler County, Kansas: 1,429.7 mi² landSumner County, Kansas: 1,181.7 mi² landKay County, Oklahoma: 919.6 mi² landChautauqua County, Kansas: 638.9 mi² landElk County, Kansas: 644.3 mi² landOsage County, Oklahoma: 2,246.7 mi² land
Cowley 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. CowleyCompare
Osage CountyOklahoma2,246.72× largerCompare
Butler County1,429.71.3× largerCompare
Sumner County1,181.7about the sameCompare
Kay CountyOklahoma919.61.2× smallerCompare
Elk County644.31.7× smallerCompare
Chautauqua County638.91.8× smallerCompare

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

Cowley County has more land than 1 of the 50 states. It is about 1.1 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.7 times as much land (1,948.6 mi²). Kansas’s county land could hold about 73 areas the size of Cowley County.

Land area: Cowley County and the closest-sized states
Rhode Island1,033.9 mi²
Cowley County1,125.7 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 33.6 miles (54 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 Cowley County?

Cowley County has more land than 2,664 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Cowley County1,125.7 mi²
Kansas median729.7 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 Cowley County at #642 nationally by total area, 84 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 0.6%, compared with a national county-equivalent median of 1.2% — 0.6 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 Cowley County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#557Edmunds County, South Dakota1,126Compare
#558Cowley County, Kansas1,125.7This county
#559Morrison County, Minnesota1,125.1Compare

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 37.234507, -96.837247. 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: 2,915,648,167 m²; AWATER: 17,322,935 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 Cowley County?

Cowley County, Kansas has 1,125.7 square miles (2,915.6 km²) of land and 6.688 square miles of water, for a total area of 1,132.4 square miles. It ranks #558 of 3,222 U.S. county equivalents by land area.

Is Cowley County the largest county in Kansas?

No. Cowley County ranks #7 of 105 in Kansas by land area. The largest is Butler County, with 1,429.7 square miles of land.

What counties border Cowley County?

Cowley County shares a land border with Butler County, Sumner County, Kay County, Oklahoma, Chautauqua County, Elk County, and Osage County, Oklahoma.

What is the population of Cowley County?

The Census Bureau estimates Cowley County had 34,382 residents on July 1, 2025, ranking #1,362 of 3,222 county equivalents. That is 31 people per square mile of land.

What is the county seat of Cowley County?

The county seat of Cowley County is Winfield.

What cities and towns are in Cowley County?

Cowley County has 9 incorporated places. The most populous five are Arkansas City city, Winfield city, Udall city, Burden city, and Parkerfield city; 8,774 residents live outside any incorporated place.

Is Cowley County part of a metropolitan area?

Yes. It is a central county of the Arkansas City-Winfield, KS Micropolitan Statistical Area.

How many ZIP codes are in Cowley County?

15 ZIP Code Tabulation Areas have land in Cowley County, and 9 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).

How many acres of land are in Cowley County?

The land measurement converts to approximately 720,472 acres. Including water, total area is approximately 724,753 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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