County Maps US

Starr County, Texas

A county in Texas, ranked 56 of 254 by population.

CountyFIPS 48427

Within Texas
Starr County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

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Population
66,319
+466 (+0.7%) since 2020
Land area
1,223
square miles. A further 0.5% of the total area is water
Population density
54.2
people per square mile, computed rather than published
County seat
Rio Grande City
Seat of county government.
Established
1848
177 years ago
Largest city
Rio Grande City city
Population 15,451.

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 Starr 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 Starr 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 602 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 Starr 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
Population66,31956th of 254829th of 3,144
Land area1,223 sq mi39th of 254501st of 3,144
Population density54.2 per sq mi76th of 2541,395th of 3,144
Median household income$37,639252nd of 2543,095th of 3,143

Full data for Starr County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population66,319Vintage 2025 Population Estimates
Population in 202065,853Vintage 2025 Population Estimates
2020 estimates base?65,916Vintage 2025 Population Estimates
Land area1,223 sq mi2025 Gazetteer Files
Water area5.9 sq mi2025 Gazetteer Files
Total area1,229 sq mi2025 Gazetteer Files
Population density?54.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$37,639American Community Survey 2020-2024 5-Year Estimates
Median home value$95,100American Community Survey 2020-2024 5-Year Estimates
Median age29.4American Community Survey 2020-2024 5-Year Estimates
Households19,157American Community Survey 2020-2024 5-Year Estimates
Housing units23,139American 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
+599
1,106 births, 507 deaths
Net migration
-673
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 Starr 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
Hidalgo CountyTexas40 mi921,549
Jim Hogg CountyTexas33 mi4,555
Zapata CountyTexas21 mi13,753
Brooks CountyTexas6.3 mi6,579

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.