County Maps US

Oldham County, Texas

A county in Texas, ranked 234 of 254 by population.

CountyFIPS 48359

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

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Population
1,783
+17 (+1.0%) since 2020
Land area
1,501
square miles. A further 0.1% of the total area is water
Population density
1.2
people per square mile, computed rather than published
County seat
Vega
Seat of county government.
Established
1881
144 years ago
Largest city
Vega city
Population 891.

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 Oldham 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 Oldham 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 528 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 Oldham 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
Population1,783234th of 2543,060th of 3,144
Land area1,501 sq mi21st of 254400th of 3,144
Population density1.2 per sq mi240th of 2543,051st of 3,144
Median household income$79,90038th of 254591st of 3,143

Full data for Oldham County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population1,783Vintage 2025 Population Estimates
Population in 20201,766Vintage 2025 Population Estimates
2020 estimates base?1,759Vintage 2025 Population Estimates
Land area1,501 sq mi2025 Gazetteer Files
Water area0.90 sq mi2025 Gazetteer Files
Total area1,501 sq mi2025 Gazetteer Files
Population density?1.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$79,900American Community Survey 2020-2024 5-Year Estimates
Median home value$162,800American Community Survey 2020-2024 5-Year Estimates
Median age31.4American Community Survey 2020-2024 5-Year Estimates
Households614American Community Survey 2020-2024 5-Year Estimates
Housing units776American 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
-6
14 births, 20 deaths
Net migration
-6
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 6 areas bordering Oldham 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
Deaf Smith CountyTexas50 mi18,626
Hartley CountyTexas49 mi4,904
Quay CountyNew Mexico30 mi8,454
Potter CountyTexas30 mi114,453
Moore CountyTexas0.5 mi21,891
Randall CountyTexasa single point152,351

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.