County outline
Where Coke County is located
Area breakdown
Land accounts for 98.2% of Coke County’s measured area and water for 1.8%. Its combined area converts to 2,403.5 square kilometers or approximately 593,914 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 911.647 | 2,361.155 | 583,454.1 |
| Water | 16.344 | 42.331 | 10,460.2 |
| Total | 927.991 | 2,403.486 | 593,914.2 |
How Coke County compares
By original Census land area, Coke County ranks #122 of 254 in Texas and #818 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.003 times the Texas county-equivalent median of 908.7 square miles. It accounts for 0.3% of the combined county land area in the state.
See the complete Texas ranking · What counts as a county equivalent?
Population and density of Coke County
The Census Bureau estimates that 3,412 people lived in Coke County on July 1, 2025. That ranks #3,004 of 3,222 county equivalents nationally and #213 of 254 in Texas. Since the April 1, 2020 estimates base of 3,306, the population has grown by 106 (+3.2%), compared with +8.8% for Texas as a whole.
With 911.6 square miles of land, that is 3.7 people per square mile (1.4 per km²), placing Coke County #2,926 nationally for density and #209 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 171 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 3,321 | 3,325 | 3,349 | 3,378 | 3,388 | 3,412 |
| Change | — | +4 | +24 | +29 | +10 | +24 |
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 Coke County
3 incorporated places lie at least partly in Coke County. Together they are home to 2,047 people (60%); the other 1,365 (40%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Robert Lee city, with 1,061 residents in the county. By land, Bronte town is the largest at 1.436 mi².
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Robert Lee cityCounty seat | 1,061 | +1.6% | 1.139 |
| Bronte town | 981 | +4.6% | 1.436 |
| Blackwell cityAlso in 1 other county | 5 | +25% | 0.591 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Coke County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Coke 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
4 ZIP Code Tabulation Areas have land in Coke County; 3 of them have most of their land inside the county, and the others mainly cover neighboring areas.
76933769457695379506
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 Coke County
Coke 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 Mitchell County (911.1 mi²). Together with its neighbors, Coke County forms a block of 6,231.6 mi² of land, of which it holds 14.6%.
| Bordering county equivalent | Land mi² | Size vs. Coke | Compare |
|---|---|---|---|
| Tom Green County | 1,522.3 | 1.7× larger | Compare |
| Runnels County | 1,051.1 | 1.2× larger | Compare |
| Sterling County | 923.4 | about the same | Compare |
| Nolan County | 912 | about the same | Compare |
| Mitchell County | 911.1 | about the same | Compare |
How big is Coke County compared with U.S. states?
Coke 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 287 areas the size of Coke County.
Another way to picture it: the same land area would fill a square about 30.2 miles (48.6 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 Coke County?
Coke County has more land than 2,404 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 Coke County at #886 nationally by total area, 68 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 1.8%, compared with a national county-equivalent median of 1.2% — 0.6 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 Coke County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #817 | Rio Grande County, Colorado | 912 | Compare |
| #818 | Coke County, Texas | 911.6 | This county |
| #819 | Mitchell County, Texas | 911.1 | 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 31.877110, -100.635231. 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: 2,361,153,626 m²; AWATER: 42,331,397 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 Coke County?
Coke County, Texas has 911.6 square miles (2,361.2 km²) of land and 16.3 square miles of water, for a total area of 928 square miles. It ranks #818 of 3,222 U.S. county equivalents by land area.
Is Coke County the largest county in Texas?
No. Coke County ranks #122 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.
What counties border Coke County?
Coke County shares a land border with Tom Green County, Sterling County, Runnels County, Nolan County, and Mitchell County.
What is the population of Coke County?
The Census Bureau estimates Coke County had 3,412 residents on July 1, 2025, ranking #3,004 of 3,222 county equivalents. That is 3.7 people per square mile of land.
What is the county seat of Coke County?
The county seat of Coke County is Robert Lee.
What cities and towns are in Coke County?
Coke County has 3 incorporated places. The most populous are Robert Lee city, Bronte town, and Blackwell city; 1,365 residents live outside any incorporated place.
Is Coke County part of a metropolitan area?
No. Coke County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Coke County?
4 ZIP Code Tabulation Areas have land in Coke County, and 3 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Coke 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 Coke County?
The land measurement converts to approximately 583,454 acres. Including water, total area is approximately 593,914 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.