County Maps US

Gaines County, Texas

A county in Texas, ranked 105 of 254 by population.

CountyFIPS 48165

Within Texas
Gaines County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Seminole, the county seat, located via the 2025 Census Gazetteer.

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Population
23,956
+2,257 (+10.4%) since 2020
Land area
1,502
square miles. A further 0.0% of the total area is water
Population density
15.9
people per square mile, computed rather than published
County seat
Seminole
Seat of county government.
Established
1876
149 years ago
Largest city
Seminole city
Population 7,730.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Gaines County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Gaines County, Texas from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 516 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Gaines County ranks

Position among the 254 counties of Texas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn TexasNationally
Population23,956105th of 2541,650th of 3,144
Land area1,502 sq mi19th of 254398th of 3,144
Population density15.9 per sq mi147th of 2542,363rd of 3,144
Median household income$74,13256th of 254901st of 3,143

Full data for Gaines County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population23,956Vintage 2025 Population Estimates
Population in 202021,699Vintage 2025 Population Estimates
2020 estimates base?21,599Vintage 2025 Population Estimates
Land area1,502 sq mi2025 Gazetteer Files
Water area0.49 sq mi2025 Gazetteer Files
Total area1,503 sq mi2025 Gazetteer Files
Population density?15.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$74,132American Community Survey 2020-2024 5-Year Estimates
Median home value$200,700American Community Survey 2020-2024 5-Year Estimates
Median age29.3American Community Survey 2020-2024 5-Year Estimates
Households6,929American Community Survey 2020-2024 5-Year Estimates
Housing units7,719American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+425
554 births, 129 deaths
Net migration
+257
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Gaines County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Andrews CountyTexas50 mi18,914
Lea CountyNew Mexico30 mi74,749
Dawson CountyTexas30 mi11,776
Yoakum CountyTexas27 mi7,438
Terry CountyTexas22 mi11,720
Martin CountyTexas0.5 mi5,284

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 254 counties of Texas

Open the interactive Texas county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.