County Maps US

Irion County, Texas

A county in Texas, ranked 239 of 254 by population.

CountyFIPS 48235

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

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Population
1,463
-43 (-2.9%) since 2020
Land area
1,052
square miles. A further 0.0% of the total area is water
Population density
1.4
people per square mile, computed rather than published
County seat
Mertzon
Seat of county government.
Established
1889
136 years ago
Largest city
Mertzon city
Population 726.

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 Irion 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 Irion 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 727 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 Irion 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
Population1,463239th of 2543,082nd of 3,144
Land area1,052 sq mi62nd of 254622nd of 3,144
Population density1.4 per sq mi236th of 2543,036th of 3,144
Median household income$70,35780th of 2541,175th of 3,143

Full data for Irion County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population1,463Vintage 2025 Population Estimates
Population in 20201,506Vintage 2025 Population Estimates
2020 estimates base?1,508Vintage 2025 Population Estimates
Land area1,052 sq mi2025 Gazetteer Files
Water area0.07 sq mi2025 Gazetteer Files
Total area1,052 sq mi2025 Gazetteer Files
Population density?1.4 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$70,357American Community Survey 2020-2024 5-Year Estimates
Median home value$204,400American Community Survey 2020-2024 5-Year Estimates
Median age40.5American Community Survey 2020-2024 5-Year Estimates
Households588American Community Survey 2020-2024 5-Year Estimates
Housing units771American 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
-3
13 births, 16 deaths
Net migration
-44
More people moved out than moved in.

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

The 4 areas bordering Irion 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
Tom Green CountyTexas64 mi120,602
Reagan CountyTexas31 mi3,166
Crockett CountyTexas19 mi2,769
Schleicher CountyTexas16 mi2,245

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.