Nolan County area

Nolan County, Texas covers 913.9 square miles: 912 square miles of land and 1.953 square miles of water. Its county seat is Sweetwater. An estimated 14,117 people lived there in 2025.

Official Census measurements · GEOID 483532026 Gazetteer · retrieved September 27, 2026
Land area912 mi²
Water area1.953 mi²
Population (2025)14,117
People per mi²15

County outline

Generalized outline of Nolan 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 Nolan County is located

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

Area breakdown

Land accounts for 99.8% of Nolan County’s measured area and water for 0.2%. Its combined area converts to 2,367.1 square kilometers or approximately 584,926 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land911.9942,362.054583,676.2
Water1.9535.0581,249.9
Total913.9472,367.112584,926.1

How Nolan County compares

By original Census land area, Nolan County ranks #121 of 254 in Texas and #816 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.004 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 Nolan County

The Census Bureau estimates that 14,117 people lived in Nolan County on July 1, 2025. That ranks #2,224 of 3,222 county equivalents nationally and #145 of 254 in Texas. Since the April 1, 2020 estimates base of 14,737, the population has declined by 620 (−4.2%), compared with +8.8% for Texas as a whole.

With 912 square miles of land, that is 15 people per square mile (6 per km²), placing Nolan County #2,461 nationally for density and #149 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 41 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate14,72414,60414,43414,24314,14614,117
Change—−120−170−191−97−29

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 Nolan County

3 incorporated places lie at least partly in Nolan County. Together they are home to 11,595 people (82.1%); the other 2,522 (17.9%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Sweetwater city, with 10,141 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Sweetwater cityCounty seat10,141−4.5%10.9
Roscoe city1,208−4.5%3.223
Blackwell cityAlso in 1 other county246−3.9%0.591

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

Metropolitan area

Nolan County is a central county of the Sweetwater, TX Micropolitan Statistical Area. Nolan County is the area’s only county equivalent, so the micro area has the same 912 square miles of land. By combined land it ranks #207 of 542 micropolitan areas, and #538 by population. It belongs to the Abilene-Sweetwater, TX Combined Statistical Area.

ZIP codes

9 ZIP Code Tabulation Areas have land in Nolan County; 5 of them have most of their land inside the county, and the others mainly cover neighboring areas.

795067953279535795367953779545795567956179566

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 Nolan County

Nolan County shares a land border with 5 county equivalents. It has more land than 3 of them. The largest neighbor is Runnels County (1,051.1 mi²) and the smallest is Fisher County (899 mi²). Together with its neighbors, Nolan County forms a block of 5,600.3 mi² of land, of which it holds 16.3%.

Map of Nolan County and the 5 county equivalents that border it Mitchell County, Texas: 911.1 mi² landTaylor County, Texas: 915.5 mi² landFisher County, Texas: 899 mi² landCoke County, Texas: 911.6 mi² landRunnels County, Texas: 1,051.1 mi² land
Nolan 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. NolanCompare
Runnels County1,051.11.2× largerCompare
Taylor County915.5about the sameCompare
Coke County911.6about the sameCompare
Mitchell County911.1about the sameCompare
Fisher County899about the sameCompare

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

Nolan 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 286 areas the size of Nolan County.

Land area: Nolan County and the closest-sized states
Nolan County912 mi²
Rhode Island1,033.9 mi²

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 Nolan County?

Nolan County has more land than 2,406 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Nolan County912 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 Nolan County at #919 nationally by total area, 103 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 0.2%, compared with a national county-equivalent median of 1.2% — 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 Nolan County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#815Throckmorton County, Texas912.6Compare
#816Nolan County, Texas912This county
#817Rio Grande County, Colorado912Compare

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 32.312338, -100.418108. 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: 2,362,054,428 m²; AWATER: 5,059,476 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 Nolan County?

Nolan County, Texas has 912 square miles (2,362.1 km²) of land and 1.953 square miles of water, for a total area of 913.9 square miles. It ranks #816 of 3,222 U.S. county equivalents by land area.

Is Nolan County the largest county in Texas?

No. Nolan County ranks #121 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Nolan County?

Nolan County shares a land border with Mitchell County, Taylor County, Fisher County, Coke County, and Runnels County.

What is the population of Nolan County?

The Census Bureau estimates Nolan County had 14,117 residents on July 1, 2025, ranking #2,224 of 3,222 county equivalents. That is 15 people per square mile of land.

What is the county seat of Nolan County?

The county seat of Nolan County is Sweetwater.

What cities and towns are in Nolan County?

Nolan County has 3 incorporated places. The most populous are Sweetwater city, Roscoe city, and Blackwell city; 2,522 residents live outside any incorporated place.

Is Nolan County part of a metropolitan area?

Yes. It is a central county of the Sweetwater, TX Micropolitan Statistical Area.

How many ZIP codes are in Nolan County?

9 ZIP Code Tabulation Areas have land in Nolan County, and 5 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Nolan 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 Nolan County?

The land measurement converts to approximately 583,676 acres. Including water, total area is approximately 584,926 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

Download the complete CSV or JSON dataset