Comanche County area

Comanche County, Oklahoma covers 1,083.9 square miles: 1,069.3 square miles of land and 14.5 square miles of water. Its county seat is Lawton. An estimated 122,158 people lived there in 2025.

Official Census measurements · GEOID 400312026 Gazetteer · retrieved September 27, 2026
Land area1,069.3 mi²
Water area14.5 mi²
Population (2025)122,158
People per mi²114

County outline

Generalized outline of Comanche County, Oklahoma
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 Comanche County is located

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

Area breakdown

Land accounts for 98.7% of Comanche County’s measured area and water for 1.3%. Its combined area converts to 2,807.2 square kilometers or approximately 693,672 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,069.3222,769.531684,366.1
Water14.54137.6619,306.2
Total1,083.8632,807.192693,672.3

How Comanche County compares

By original Census land area, Comanche County ranks #15 of 77 in Oklahoma and #604 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.332 times the Oklahoma county-equivalent median of 802.7 square miles. It accounts for 1.6% of the combined county land area in the state.

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

Population and density of Comanche County

The Census Bureau estimates that 122,158 people lived in Comanche County on July 1, 2025. That ranks #538 of 3,222 county equivalents nationally and #5 of 77 in Oklahoma. Since the April 1, 2020 estimates base of 121,125, the population has grown by 1,033 (+0.9%), compared with +4.1% for Oklahoma as a whole.

With 1,069.3 square miles of land, that is 114 people per square mile (44 per km²), placing Comanche County #909 nationally for density and #9 in Oklahoma. The median county equivalent has 47 people per square mile; the Oklahoma median is 28. Put another way, there are about 5.6 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate121,150122,383122,353121,882121,642122,158
Change—+1,233−30−471−240+516

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 Comanche County

10 incorporated places lie at least partly in Comanche County. Together they are home to 101,831 people (83.4%); the other 20,327 (16.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Lawton city, with 90,503 residents in the county. Among places with at least 1,000 residents in 2020, Cache city grew fastest since then (+10.1%).

Incorporated placePopulation 2025Since 2020Land mi²
Lawton cityCounty seat90,503+0.1%81.9
Elgin city3,653+2.8%3.748
Cache city3,239+10.1%3.645
Fletcher town1,274+5.2%1.939
Geronimo town1,188+2.5%1.547
Sterling town674−0.1%0.822
Medicine Park town497+21.5%2.211
Chattanooga townAlso in 1 other county410+1%0.524
Indiahoma town276−0.4%0.278
Faxon town117+1.7%0.257

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

Metropolitan area

Comanche County is a central county of the Lawton, OK Metropolitan Statistical Area. Its 2 county equivalents have 127,590 residents on 1,702 square miles of land; Comanche County accounts for 62.8% of the land and 95.7% of the residents. By combined land it ranks #188 of 393 metropolitan areas, and #329 by population. It belongs to the Lawton-Duncan, OK Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Comanche County122,1581,069.3
Cotton County5,432632.6

ZIP codes

19 ZIP Code Tabulation Areas have land in Comanche County; 12 of them have most of their land inside the county, and the others mainly cover neighboring areas.

73006730177305573082735017350373505735077352773528735387354073541735437355273557735597356773572

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 Comanche County

Comanche County shares a land border with 6 county equivalents. It has more land than 4 of them. The largest neighbor is Caddo County (1,277.8 mi²) and the smallest is Cotton County (632.6 mi²). Together with its neighbors, Comanche County forms a block of 6,836.7 mi² of land, of which it holds 15.6%.

Map of Comanche County and the 6 county equivalents that border it Cotton County, Oklahoma: 632.6 mi² landKiowa County, Oklahoma: 1,015.1 mi² landCaddo County, Oklahoma: 1,277.8 mi² landTillman County, Oklahoma: 871.1 mi² landStephens County, Oklahoma: 870.2 mi² landGrady County, Oklahoma: 1,100.5 mi² land
Comanche 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. ComancheCompare
Caddo County1,277.81.2× largerCompare
Grady County1,100.5about the sameCompare
Kiowa County1,015.11.1× smallerCompare
Tillman County871.11.2× smallerCompare
Stephens County870.21.2× smallerCompare
Cotton County632.61.7× smallerCompare

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

Comanche County has more land than 1 of the 50 states. It is about 1 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.8 times as much land (1,948.6 mi²). Oklahoma’s county land could hold about 64 areas the size of Comanche County.

Land area: Comanche County and the closest-sized states
Rhode Island1,033.9 mi²
Comanche County1,069.3 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 32.7 miles (52.6 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 Comanche County?

Comanche County has more land than 2,618 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Comanche County1,069.3 mi²
Oklahoma median802.7 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 Comanche County at #682 nationally by total area, 78 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 1.3%, compared with a national county-equivalent median of 1.2% — 0.2 percentage points higher. 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 Comanche County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#603Rawlins County, Kansas1,069.4Compare
#604Comanche County, Oklahoma1,069.3This county
#605Dolores County, Colorado1,067.2Compare

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 34.662733, -98.476208. 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: 2,769,531,002 m²; AWATER: 37,661,893 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 Comanche County?

Comanche County, Oklahoma has 1,069.3 square miles (2,769.5 km²) of land and 14.5 square miles of water, for a total area of 1,083.9 square miles. It ranks #604 of 3,222 U.S. county equivalents by land area.

Is Comanche County the largest county in Oklahoma?

No. Comanche County ranks #15 of 77 in Oklahoma by land area. The largest is Osage County, with 2,246.7 square miles of land.

What counties border Comanche County?

Comanche County shares a land border with Cotton County, Kiowa County, Caddo County, Tillman County, Stephens County, and Grady County.

What is the population of Comanche County?

The Census Bureau estimates Comanche County had 122,158 residents on July 1, 2025, ranking #538 of 3,222 county equivalents. That is 114 people per square mile of land.

What is the county seat of Comanche County?

The county seat of Comanche County is Lawton.

What cities and towns are in Comanche County?

Comanche County has 10 incorporated places. The most populous five are Lawton city, Elgin city, Cache city, Fletcher town, and Geronimo town; 20,327 residents live outside any incorporated place.

Is Comanche County part of a metropolitan area?

Yes. It is a central county of the Lawton, OK Metropolitan Statistical Area, which has 2 county equivalents and 127,590 residents.

How many ZIP codes are in Comanche County?

19 ZIP Code Tabulation Areas have land in Comanche County, and 12 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Comanche 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 Comanche County?

The land measurement converts to approximately 684,366 acres. Including water, total area is approximately 693,672 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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