Shelby County area

Shelby County, Texas covers 834.6 square miles: 795.6 square miles of land and 39 square miles of water. Its county seat is Center. An estimated 24,286 people lived there in 2025.

Official Census measurements · GEOID 484192026 Gazetteer · retrieved September 27, 2026
Land area795.6 mi²
Water area39 mi²
Population (2025)24,286
People per mi²31

County outline

Generalized outline of Shelby 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 Shelby County is located

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

Area breakdown

Land accounts for 95.3% of Shelby County’s measured area and water for 4.7%. Its combined area converts to 2,161.6 square kilometers or approximately 534,155 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land795.5892,060.566509,177
Water39.028101.08224,977.9
Total834.6172,161.648534,154.9

How Shelby County compares

By original Census land area, Shelby County ranks #198 of 254 in Texas and #1077 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.876 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 Shelby County

The Census Bureau estimates that 24,286 people lived in Shelby County on July 1, 2025. That ranks #1,692 of 3,222 county equivalents nationally and #104 of 254 in Texas. Since the April 1, 2020 estimates base of 24,137, the population has grown by 149 (+0.6%), compared with +8.8% for Texas as a whole.

With 795.6 square miles of land, that is 31 people per square mile (12 per km²), placing Shelby County #1,992 nationally for density and #108 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 21 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate24,04224,10624,16524,28024,32424,286
Change—+64+59+115+44−38

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 Shelby County

5 incorporated places lie at least partly in Shelby County. Together they are home to 8,322 people (34.3%); the other 15,964 (65.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Center city, with 5,246 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Center cityCounty seat5,246−1.7%7.987
Tenaha town1,005+1.7%3.744
Timpson city995+0.6%2.512
Joaquin city732−0.3%2.306
Huxley city344+3%2.039

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

Metropolitan area

Shelby 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

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

75643759357595475972759737597475975

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 Shelby County

Shelby County shares a land border with 7 county equivalents, including 2 in Louisiana. It has more land than 2 of them. The largest neighbor is Nacogdoches County (946.3 mi²) and the smallest is Sabine County (491.7 mi²). Together with its neighbors, Shelby County forms a block of 6,242.9 mi² of land, of which it holds 12.7%.

Map of Shelby County and the 7 county equivalents that border it Panola County, Texas: 811.4 mi² landSan Augustine County, Texas: 530.7 mi² landSabine Parish, Louisiana: 866.6 mi² landNacogdoches County, Texas: 946.3 mi² landDe Soto Parish, Louisiana: 876.5 mi² landRusk County, Texas: 924.2 mi² landSabine County, Texas: 491.7 mi² land
Shelby 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. ShelbyCompare
Nacogdoches County946.31.2× largerCompare
Rusk County924.21.2× largerCompare
De Soto ParishLouisiana876.51.1× largerCompare
Sabine ParishLouisiana866.61.1× largerCompare
Panola County811.4about the sameCompare
San Augustine County530.71.5× smallerCompare
Sabine County491.71.6× smallerCompare

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

Shelby County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.3 times as much. Texas’s county land could hold about 328 areas the size of Shelby County.

Land area: Shelby County and the closest-sized states
Shelby County795.6 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 28.2 miles (45.4 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 Shelby County?

Shelby County has more land than 2,145 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Shelby County795.6 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 Shelby County at #1,110 nationally by total area, 33 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 4.7%, compared with a national county-equivalent median of 1.2% — 3.5 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 Shelby County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1076Dutchess County, New York795.6Compare
#1077Shelby County, Texas795.6This county
#1078Morehouse Parish, Louisiana795Compare

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 31.790139, -94.142579. 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: 2,060,566,451 m²; AWATER: 101,081,662 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 Shelby County?

Shelby County, Texas has 795.6 square miles (2,060.6 km²) of land and 39 square miles of water, for a total area of 834.6 square miles. It ranks #1077 of 3,222 U.S. county equivalents by land area.

Is Shelby County the largest county in Texas?

No. Shelby County ranks #198 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Shelby County?

Shelby County shares a land border with Panola County, San Augustine County, Sabine Parish, Louisiana, Nacogdoches County, De Soto Parish, Louisiana, Rusk County, and Sabine County.

What is the population of Shelby County?

The Census Bureau estimates Shelby County had 24,286 residents on July 1, 2025, ranking #1,692 of 3,222 county equivalents. That is 31 people per square mile of land.

What is the county seat of Shelby County?

The county seat of Shelby County is Center.

What cities and towns are in Shelby County?

Shelby County has 5 incorporated places. The most populous are Center city, Tenaha town, Timpson city, Joaquin city, and Huxley city; 15,964 residents live outside any incorporated place.

Is Shelby County part of a metropolitan area?

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

How many ZIP codes are in Shelby County?

7 ZIP Code Tabulation Areas have land in Shelby 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 Shelby County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.3 times as much land.

How many acres of land are in Shelby County?

The land measurement converts to approximately 509,177 acres. Including water, total area is approximately 534,155 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