County outline
Where Concho County is located
Area breakdown
Land accounts for 99% of Concho County’s measured area and water for 1%. Its combined area converts to 2,573.7 square kilometers or approximately 635,964 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 983.755 | 2,547.914 | 629,603.2 |
| Water | 9.938 | 25.739 | 6,360.3 |
| Total | 993.693 | 2,573.653 | 635,963.5 |
How Concho County compares
By original Census land area, Concho County ranks #78 of 254 in Texas and #699 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.083 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 Concho County
The Census Bureau estimates that 3,607 people lived in Concho County on July 1, 2025. That ranks #2,992 of 3,222 county equivalents nationally and #210 of 254 in Texas. Since the April 1, 2020 estimates base of 3,302, the population has grown by 305 (+9.2%), compared with +8.8% for Texas as a whole.
With 983.8 square miles of land, that is 3.7 people per square mile (1.4 per km²), placing Concho County #2,935 nationally for density and #210 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 175 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 3,317 | 3,346 | 3,392 | 3,431 | 3,577 | 3,607 |
| Change | — | +29 | +46 | +39 | +146 | +30 |
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 Concho County
2 incorporated places lie at least partly in Concho County. Together they are home to 2,520 people (69.9%); the other 1,087 (30.1%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Eden city, with 2,248 residents in the county. The county seat, Paint Rock town, has 272 residents.
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Eden city | 2,248 | +6.8% | 2.379 |
| Paint Rock townCounty seat | 272 | +13.8% | 1.644 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Concho County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Concho 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
8 ZIP Code Tabulation Areas have land in Concho County; 4 of them have most of their land inside the county, and the others mainly cover neighboring areas.
7683676837768587686276866768757693776955
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 Concho County
Concho County shares a land border with 5 county equivalents. It has more land than 1 of them. The largest neighbor is Tom Green County (1,522.3 mi²) and the smallest is Menard County (902 mi²). Together with its neighbors, Concho County forms a block of 6,787.7 mi² of land, of which it holds 14.5%.
| Bordering county equivalent | Land mi² | Size vs. Concho | Compare |
|---|---|---|---|
| Tom Green County | 1,522.3 | 1.5× larger | Compare |
| Coleman County | 1,263 | 1.3× larger | Compare |
| McCulloch County | 1,065.6 | 1.1× larger | Compare |
| Runnels County | 1,051.1 | 1.1× larger | Compare |
| Menard County | 902 | 1.1× smaller | Compare |
How big is Concho County compared with U.S. states?
Concho 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 266 areas the size of Concho County.
Another way to picture it: the same land area would fill a square about 31.4 miles (50.5 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 Concho County?
Concho County has more land than 2,523 of the other 3,221 county equivalents in the dataset.
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 Concho County at #783 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 1%, compared with a national county-equivalent median of 1.2% — 0.2 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 Concho County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #698 | Adams County, North Dakota | 987.5 | Compare |
| #699 | Concho County, Texas | 983.8 | This county |
| #700 | Monroe County, Florida | 983 | Compare |
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 31.318883, -99.863649. 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: 2,547,914,002 m²; AWATER: 25,740,025 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Concho County?
Concho County, Texas has 983.8 square miles (2,547.9 km²) of land and 9.938 square miles of water, for a total area of 993.7 square miles. It ranks #699 of 3,222 U.S. county equivalents by land area.
Is Concho County the largest county in Texas?
No. Concho County ranks #78 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.
What counties border Concho County?
Concho County shares a land border with Tom Green County, Menard County, McCulloch County, Runnels County, and Coleman County.
What is the population of Concho County?
The Census Bureau estimates Concho County had 3,607 residents on July 1, 2025, ranking #2,992 of 3,222 county equivalents. That is 3.7 people per square mile of land.
What is the county seat of Concho County?
The county seat of Concho County is Paint Rock.
What cities and towns are in Concho County?
Concho County has 2 incorporated places. The most populous are Eden city and Paint Rock town; 1,087 residents live outside any incorporated place.
Is Concho County part of a metropolitan area?
No. Concho County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Concho County?
8 ZIP Code Tabulation Areas have land in Concho County, and 4 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Concho 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 Concho County?
The land measurement converts to approximately 629,603 acres. Including water, total area is approximately 635,964 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.