Runnels County area

Runnels County, Texas covers 1,057.1 square miles: 1,051.1 square miles of land and 6.025 square miles of water. Its county seat is Ballinger. An estimated 9,693 people lived there in 2025.

Official Census measurements · GEOID 483992026 Gazetteer · retrieved September 27, 2026
Land area1,051.1 mi²
Water area6.025 mi²
Population (2025)9,693
People per mi²9.2

County outline

Generalized outline of Runnels 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 Runnels County is located

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

Area breakdown

Land accounts for 99.4% of Runnels County’s measured area and water for 0.6%. Its combined area converts to 2,737.9 square kilometers or approximately 676,541 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,051.072,722.259672,684.8
Water6.02515.6053,856
Total1,057.0952,737.863676,540.8

How Runnels County compares

By original Census land area, Runnels County ranks #63 of 254 in Texas and #623 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.157 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 Runnels County

The Census Bureau estimates that 9,693 people lived in Runnels County on July 1, 2025. That ranks #2,507 of 3,222 county equivalents nationally and #165 of 254 in Texas. Since the April 1, 2020 estimates base of 9,896, the population has declined by 203 (−2.1%), compared with +8.8% for Texas as a whole.

With 1,051.1 square miles of land, that is 9.2 people per square mile (3.6 per km²), placing Runnels County #2,669 nationally for density and #174 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 69 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate9,9169,8909,8889,9019,7589,693
Change—−26−2+13−143−65

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 Runnels County

3 incorporated places lie at least partly in Runnels County. Together they are home to 6,693 people (69%); the other 3,000 (31%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Ballinger city, with 3,499 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Ballinger cityCounty seat3,499−3.5%3.492
Winters city2,263−3.7%2.357
Miles city931+6.6%1.702

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

Metropolitan area

Runnels 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

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

7682176861768657687576882769337951979530795387956679567

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 Runnels County

Runnels County shares a land border with 6 county equivalents. It has more land than 4 of them. The largest neighbor is Tom Green County (1,522.3 mi²) and the smallest is Coke County (911.6 mi²). Together with its neighbors, Runnels County forms a block of 7,559.3 mi² of land, of which it holds 13.9%.

Map of Runnels County and the 6 county equivalents that border it Coleman County, Texas: 1,263 mi² landCoke County, Texas: 911.6 mi² landTaylor County, Texas: 915.5 mi² landConcho County, Texas: 983.8 mi² landTom Green County, Texas: 1,522.3 mi² landNolan County, Texas: 912 mi² land
Runnels 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. RunnelsCompare
Tom Green County1,522.31.4× largerCompare
Coleman County1,2631.2× largerCompare
Concho County983.81.1× smallerCompare
Taylor County915.51.1× smallerCompare
Nolan County9121.2× smallerCompare
Coke County911.61.2× smallerCompare

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

Runnels County has more land than 1 of the 50 states. It is about 1 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.9 times as much land (1,948.6 mi²). Texas’s county land could hold about 249 areas the size of Runnels County.

Land area: Runnels County and the closest-sized states
Rhode Island1,033.9 mi²
Runnels County1,051.1 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 32.4 miles (52.2 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 Runnels County?

Runnels County has more land than 2,599 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Runnels County1,051.1 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 Runnels County at #712 nationally by total area, 89 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 0.6%, compared with a national county-equivalent median of 1.2% — 0.6 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 Runnels County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#622Irion County, Texas1,051.5Compare
#623Runnels County, Texas1,051.1This county
#624Clay County, Minnesota1,045.2Compare

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 31.845073, -99.981315. 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: 2,722,259,306 m²; AWATER: 15,604,788 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 Runnels County?

Runnels County, Texas has 1,051.1 square miles (2,722.3 km²) of land and 6.025 square miles of water, for a total area of 1,057.1 square miles. It ranks #623 of 3,222 U.S. county equivalents by land area.

Is Runnels County the largest county in Texas?

No. Runnels County ranks #63 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Runnels County?

Runnels County shares a land border with Coleman County, Coke County, Taylor County, Concho County, Tom Green County, and Nolan County.

What is the population of Runnels County?

The Census Bureau estimates Runnels County had 9,693 residents on July 1, 2025, ranking #2,507 of 3,222 county equivalents. That is 9.2 people per square mile of land.

What is the county seat of Runnels County?

The county seat of Runnels County is Ballinger.

What cities and towns are in Runnels County?

Runnels County has 3 incorporated places. The most populous are Ballinger city, Winters city, and Miles city; 3,000 residents live outside any incorporated place.

Is Runnels County part of a metropolitan area?

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

How many ZIP codes are in Runnels County?

11 ZIP Code Tabulation Areas have land in Runnels 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 Runnels County compare with U.S. states?

It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).

How many acres of land are in Runnels County?

The land measurement converts to approximately 672,685 acres. Including water, total area is approximately 676,541 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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