Collingsworth County area

Collingsworth County, Texas covers 919.3 square miles: 918.4 square miles of land and 0.88 square miles of water. Its county seat is Wellington. An estimated 2,487 people lived there in 2025.

Official Census measurements · GEOID 480872026 Gazetteer · retrieved September 27, 2026
Land area918.4 mi²
Water area0.88 mi²
Population (2025)2,487
People per mi²2.7

County outline

Generalized outline of Collingsworth County, Texas
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 Collingsworth County is located

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

Area breakdown

Land accounts for 99.9% of Collingsworth County’s measured area and water for 0.1%. Its combined area converts to 2,381 square kilometers or approximately 588,365 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land918.4412,378.751587,802.2
Water0.882.279563.2
Total919.3212,381.03588,365.4

How Collingsworth County compares

By original Census land area, Collingsworth County ranks #111 of 254 in Texas and #799 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.011 times the Texas county-equivalent median of 908.7 square miles. It accounts for 0.4% of the combined county land area in the state.

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

Population and density of Collingsworth County

The Census Bureau estimates that 2,487 people lived in Collingsworth County on July 1, 2025. That ranks #3,073 of 3,222 county equivalents nationally and #229 of 254 in Texas. Since the April 1, 2020 estimates base of 2,652, the population has declined by 165 (−6.2%), compared with +8.8% for Texas as a whole.

With 918.4 square miles of land, that is 2.7 people per square mile (1 per km²), placing Collingsworth County #3,010 nationally for density and #221 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 236 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate2,6422,6092,5852,5452,5672,487
Change—−33−24−40+22−80

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 Collingsworth County

2 incorporated places lie at least partly in Collingsworth County. Together they are home to 1,859 people (74.7%); the other 628 (25.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Wellington city, with 1,770 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Wellington cityCounty seat1,770−6.5%1.379
Dodson town89−5.3%0.61

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

Metropolitan area

Collingsworth 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

6 ZIP Code Tabulation Areas have land in Collingsworth County; 2 of them have most of their land inside the county, and the others mainly cover neighboring areas.

790577907979095792307924579251

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 Collingsworth County

Collingsworth County shares a land border with 6 county equivalents, including 2 in Oklahoma. It has more land than 5 of them. The largest neighbor is Donley County (927 mi²) and the smallest is Harmon County (537.3 mi²). Together with its neighbors, Collingsworth County forms a block of 5,778.9 mi² of land, of which it holds 15.9%.

Map of Collingsworth County and the 6 county equivalents that border it Donley County, Texas: 927 mi² landWheeler County, Texas: 914.5 mi² landChildress County, Texas: 696.5 mi² landHarmon County, Oklahoma: 537.3 mi² landBeckham County, Oklahoma: 901.7 mi² landHall County, Texas: 883.5 mi² land
Collingsworth 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. CollingsworthCompare
Donley County927about the sameCompare
Wheeler County914.5about the sameCompare
Beckham CountyOklahoma901.7about the sameCompare
Hall County883.5about the sameCompare
Childress County696.51.3× smallerCompare
Harmon CountyOklahoma537.31.7× smallerCompare

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

Collingsworth County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. Texas’s county land could hold about 284 areas the size of Collingsworth County.

Land area: Collingsworth County and the closest-sized states
Collingsworth County918.4 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 30.3 miles (48.8 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 Collingsworth County?

Collingsworth County has more land than 2,423 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Collingsworth County918.4 mi²
Texas median908.7 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 Collingsworth County at #904 nationally by total area, 105 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 0.1%, 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 Collingsworth County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#798Kay County, Oklahoma919.6Compare
#799Collingsworth County, Texas918.4This county
#800Jackson County, Florida918.3Compare

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 34.965377, -100.271271. 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: 2,378,750,391 m²; AWATER: 2,278,703 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 Collingsworth County?

Collingsworth County, Texas has 918.4 square miles (2,378.8 km²) of land and 0.88 square miles of water, for a total area of 919.3 square miles. It ranks #799 of 3,222 U.S. county equivalents by land area.

Is Collingsworth County the largest county in Texas?

No. Collingsworth County ranks #111 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Collingsworth County?

Collingsworth County shares a land border with Donley County, Wheeler County, Childress County, Harmon County, Oklahoma, Beckham County, Oklahoma, and Hall County.

What is the population of Collingsworth County?

The Census Bureau estimates Collingsworth County had 2,487 residents on July 1, 2025, ranking #3,073 of 3,222 county equivalents. That is 2.7 people per square mile of land.

What is the county seat of Collingsworth County?

The county seat of Collingsworth County is Wellington.

What cities and towns are in Collingsworth County?

Collingsworth County has 2 incorporated places. The most populous are Wellington city and Dodson town; 628 residents live outside any incorporated place.

Is Collingsworth County part of a metropolitan area?

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

How many ZIP codes are in Collingsworth County?

6 ZIP Code Tabulation Areas have land in Collingsworth County, and 2 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has less land than every state. Rhode Island, the smallest, has 1.1 times as much land.

How many acres of land are in Collingsworth County?

The land measurement converts to approximately 587,802 acres. Including water, total area is approximately 588,365 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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