County outline
Where Culberson County is located
Area breakdown
Land accounts for 100% of Culberson County’s measured area and water for 0%. Its combined area converts to 9,874 square kilometers or approximately 2,439,917 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 3,812.156 | 9,873.439 | 2,439,779.8 |
| Water | 0.215 | 0.557 | 137.6 |
| Total | 3,812.371 | 9,873.996 | 2,439,917.4 |
How Culberson County compares
By original Census land area, Culberson County ranks #5 of 254 in Texas and #130 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 4.195 times the Texas county-equivalent median of 908.7 square miles. It accounts for 1.5% of the combined county land area in the state.
See the complete Texas ranking · What counts as a county equivalent?
Population and density of Culberson County
The Census Bureau estimates that 2,267 people lived in Culberson County on July 1, 2025. That ranks #3,099 of 3,222 county equivalents nationally and #230 of 254 in Texas. Since the April 1, 2020 estimates base of 2,186, the population has grown by 81 (+3.7%), compared with +8.8% for Texas as a whole.
With 3,812.2 square miles of land, that is 0.59 people per square mile (0.23 per km²), placing Culberson County #3,188 nationally for density and #249 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 1,076 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 2,185 | 2,184 | 2,160 | 2,205 | 2,273 | 2,267 |
| Change | — | −1 | −24 | +45 | +68 | −6 |
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 Culberson County
1 incorporated place lies at least partly in Culberson County. Together they are home to 2,020 people (89.1%); the other 247 (10.9%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Van Horn town, with 2,020 residents in the county.
Metropolitan area
Culberson 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
2 ZIP Code Tabulation Areas have land in Culberson County, and each lies mostly inside the county.
7984779855
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Culberson County
Culberson County shares a land border with 5 county equivalents, including 2 in New Mexico. It has more land than 2 of them. The largest neighbor is Otero County (6,612.6 mi²) and the smallest is Jeff Davis County (2,264.6 mi²). Together with its neighbors, Culberson County forms a block of 24,071.5 mi² of land, of which it holds 15.8%.
| Bordering county equivalent | Land mi² | Size vs. Culberson | Compare |
|---|---|---|---|
| Otero CountyNew Mexico | 6,612.6 | 1.7× larger | Compare |
| Hudspeth County | 4,570.5 | 1.2× larger | Compare |
| Eddy CountyNew Mexico | 4,176.3 | 1.1× larger | Compare |
| Reeves County | 2,635.4 | 1.4× smaller | Compare |
| Jeff Davis County | 2,264.6 | 1.7× smaller | Compare |
How big is Culberson County compared with U.S. states?
Culberson County has more land than 2 of the 50 states. It is about 2 times the land area of Delaware (1,948.6 mi²), while Connecticut, the next larger state, has 1.3 times as much land (4,842.5 mi²). Texas’s county land could hold about 69 areas the size of Culberson County.
Another way to picture it: the same land area would fill a square about 61.7 miles (99.4 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 Culberson County?
Culberson County has more land than 3,092 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 Culberson County at #139 nationally by total area, 9 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% — 1.2 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 Culberson County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #129 | Union County, New Mexico | 3,825.1 | Compare |
| #130 | Culberson County, Texas | 3,812.2 | This county |
| #131 | Doña Ana County, New Mexico | 3,808.2 | 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 31.445908, -104.526945. 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: 9,873,439,502 m²; AWATER: 556,134 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 Culberson County?
Culberson County, Texas has 3,812.2 square miles (9,873.4 km²) of land and 0.215 square miles of water, for a total area of 3,812.4 square miles. It ranks #130 of 3,222 U.S. county equivalents by land area.
Is Culberson County the largest county in Texas?
No. Culberson County ranks #5 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.
What counties border Culberson County?
Culberson County shares a land border with Hudspeth County, Reeves County, Jeff Davis County, Eddy County, New Mexico, and Otero County, New Mexico.
What is the population of Culberson County?
The Census Bureau estimates Culberson County had 2,267 residents on July 1, 2025, ranking #3,099 of 3,222 county equivalents. That is 0.59 people per square mile of land.
What is the county seat of Culberson County?
The county seat of Culberson County is Van Horn.
Is Culberson County part of a metropolitan area?
No. Culberson County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Culberson County?
2 ZIP Code Tabulation Areas have land in Culberson 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 Culberson County compare with U.S. states?
It has more land than 2 of the 50 states, including Delaware (1,948.6 square miles of land).
How many acres of land are in Culberson County?
The land measurement converts to approximately 2,439,780 acres. Including water, total area is approximately 2,439,917 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.