Houston County area

Houston County, Alabama covers 581.7 square miles: 579.8 square miles of land and 1.85 square miles of water. Its county seat is Dothan. An estimated 110,318 people lived there in 2025.

Official Census measurements · GEOID 010692026 Gazetteer · retrieved September 27, 2026
Land area579.8 mi²
Water area1.85 mi²
Population (2025)110,318
People per mi²190

County outline

Generalized outline of Houston County, Alabama
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 Houston County is located

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

Area breakdown

Land accounts for 99.7% of Houston County’s measured area and water for 0.3%. Its combined area converts to 1,506.5 square kilometers or approximately 372,274 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land579.8281,501.748371,089.9
Water1.854.7911,184
Total581.6781,506.539372,273.9

How Houston County compares

By original Census land area, Houston County ranks #58 of 67 in Alabama and #1701 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.863 times the Alabama county-equivalent median of 672.1 square miles. It accounts for 1.1% of the combined county land area in the state.

See the complete Alabama ranking · What counts as a county equivalent?

Population and density of Houston County

The Census Bureau estimates that 110,318 people lived in Houston County on July 1, 2025. That ranks #583 of 3,222 county equivalents nationally and #12 of 67 in Alabama. Since the April 1, 2020 estimates base of 107,204, the population has grown by 3,114 (+2.9%), compared with +3.3% for Alabama as a whole.

With 579.8 square miles of land, that is 190 people per square mile (73 per km²), placing Houston County #659 nationally for density and #11 in Alabama. The median county equivalent has 47 people per square mile; the Alabama median is 49. Put another way, there are about 3.4 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate107,306107,470108,170108,726109,707110,318
Change—+164+700+556+981+611

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 Houston County

12 incorporated places lie at least partly in Houston County. Together they are home to 86,067 people (78%); the other 24,251 (22%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Dothan city, with 70,465 residents in the county (the city extends into 2 other counties). Among places with at least 1,000 residents in 2020, Rehobeth town grew fastest since then (+23.2%).

Incorporated placePopulation 2025Since 2020Land mi²
Dothan cityCounty seat · Also in 2 other counties70,465+1.3%90.6
Ashford city2,470+9.5%6.202
Taylor cityAlso in 1 other county2,353+4.1%7.232
Kinsey city2,291+4%12.1
Rehobeth town2,217+23.2%7.995
Cowarts town2,064+6.8%7.654
Webb town1,340+5.4%11.3
Cottonwood town1,104+4.3%5.782
Columbia town720+3.6%3.931
Avon town471+1.7%2.363
Gordon town309+3.3%2.92
Madrid town263−1.1%1.747

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

Metropolitan area

Houston County is a central county of the Dothan, AL Metropolitan Statistical Area. Its 3 county equivalents have 156,266 residents on 1,716.2 square miles of land; Houston County accounts for 33.8% of the land and 70.6% of the residents. By combined land it ranks #185 of 393 metropolitan areas, and #288 by population. It belongs to the Dothan-Enterprise-Ozark, AL Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Houston County110,318579.8
Geneva County27,554574.5
Henry County18,394561.9

ZIP codes

14 ZIP Code Tabulation Areas have land in Houston County; 10 of them have most of their land inside the county, and the others mainly cover neighboring areas.

3630136303363053631236319363203632136343363453635036352363703637536376

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 Houston County

Houston County shares a land border with 6 county equivalents, including 3 in Florida and Georgia. It has more land than 5 of them. The largest neighbor is Jackson County (918.3 mi²) and the smallest is Seminole County (237.6 mi²). Together with its neighbors, Houston County forms a block of 3,945.8 mi² of land, of which it holds 14.7%.

Map of Houston County and the 6 county equivalents that border it Jackson County, Florida: 918.3 mi² landGeneva County, Alabama: 574.5 mi² landDale County, Alabama: 561.1 mi² landHenry County, Alabama: 561.9 mi² landEarly County, Georgia: 512.6 mi² landSeminole County, Georgia: 237.6 mi² land
Houston 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. HoustonCompare
Jackson CountyFlorida918.31.6× largerCompare
Geneva County574.5about the sameCompare
Henry County561.9about the sameCompare
Dale County561.1about the sameCompare
Early CountyGeorgia512.61.1× smallerCompare
Seminole CountyGeorgia237.62.4× smallerCompare

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

Houston County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.8 times as much. Alabama’s county land could hold about 87 areas the size of Houston County.

Land area: Houston County and the closest-sized states
Houston County579.8 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 24.1 miles (38.8 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 Houston County?

Houston County has more land than 1,521 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Houston County579.8 mi²
Alabama median672.1 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 Houston County at #1,822 nationally by total area, 121 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 0.3%, compared with a national county-equivalent median of 1.2% — 0.9 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 Houston County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1700Butler County, Iowa580.1Compare
#1701Houston County, Alabama579.8This county
#1702Morgan County, Alabama579.7Compare

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 31.158183, -85.296411. 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: 1,501,746,857 m²; AWATER: 4,790,783 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 Houston County?

Houston County, Alabama has 579.8 square miles (1,501.7 km²) of land and 1.85 square miles of water, for a total area of 581.7 square miles. It ranks #1701 of 3,222 U.S. county equivalents by land area.

Is Houston County the largest county in Alabama?

No. Houston County ranks #58 of 67 in Alabama by land area. The largest is Baldwin County, with 1,589.9 square miles of land.

What counties border Houston County?

Houston County shares a land border with Jackson County, Florida, Geneva County, Dale County, Henry County, Early County, Georgia, and Seminole County, Georgia.

What is the population of Houston County?

The Census Bureau estimates Houston County had 110,318 residents on July 1, 2025, ranking #583 of 3,222 county equivalents. That is 190 people per square mile of land.

What is the county seat of Houston County?

The county seat of Houston County is Dothan.

What cities and towns are in Houston County?

Houston County has 12 incorporated places. The most populous five are Dothan city, Ashford city, Taylor city, Kinsey city, and Rehobeth town; 24,251 residents live outside any incorporated place.

Is Houston County part of a metropolitan area?

Yes. It is a central county of the Dothan, AL Metropolitan Statistical Area, which has 3 county equivalents and 156,266 residents.

How many ZIP codes are in Houston County?

14 ZIP Code Tabulation Areas have land in Houston County, and 10 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Houston County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.8 times as much land.

How many acres of land are in Houston County?

The land measurement converts to approximately 371,090 acres. Including water, total area is approximately 372,274 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