County outline
Where Houston County is located
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
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 579.828 | 1,501.748 | 371,089.9 |
| Water | 1.85 | 4.791 | 1,184 |
| Total | 581.678 | 1,506.539 | 372,273.9 |
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.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 107,306 | 107,470 | 108,170 | 108,726 | 109,707 | 110,318 |
| 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 place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Dothan cityCounty seat · Also in 2 other counties | 70,465 | +1.3% | 90.6 |
| Ashford city | 2,470 | +9.5% | 6.202 |
| Taylor cityAlso in 1 other county | 2,353 | +4.1% | 7.232 |
| Kinsey city | 2,291 | +4% | 12.1 |
| Rehobeth town | 2,217 | +23.2% | 7.995 |
| Cowarts town | 2,064 | +6.8% | 7.654 |
| Webb town | 1,340 | +5.4% | 11.3 |
| Cottonwood town | 1,104 | +4.3% | 5.782 |
| Columbia town | 720 | +3.6% | 3.931 |
| Avon town | 471 | +1.7% | 2.363 |
| Gordon town | 309 | +3.3% | 2.92 |
| Madrid town | 263 | −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 equivalent | Population 2025 | Land mi² |
|---|---|---|
| Houston County | 110,318 | 579.8 |
| Geneva County | 27,554 | 574.5 |
| Henry County | 18,394 | 561.9 |
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%.
| Bordering county equivalent | Land mi² | Size vs. Houston | Compare |
|---|---|---|---|
| Jackson CountyFlorida | 918.3 | 1.6× larger | Compare |
| Geneva County | 574.5 | about the same | Compare |
| Henry County | 561.9 | about the same | Compare |
| Dale County | 561.1 | about the same | Compare |
| Early CountyGeorgia | 512.6 | 1.1× smaller | Compare |
| Seminole CountyGeorgia | 237.6 | 2.4× smaller | Compare |
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.
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.
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 rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1700 | Butler County, Iowa | 580.1 | Compare |
| #1701 | Houston County, Alabama | 579.8 | This county |
| #1702 | Morgan County, Alabama | 579.7 | 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 31.158183, -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.
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.