County Maps US

Dallas County, Texas

A county in Texas, ranked 2 of 254 by population.

CountyFIPS 48113

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

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Population
2,661,397
+50,595 (+1.9%) since 2020
Land area
873.2
square miles. A further 3.9% of the total area is water
Population density
3,048
people per square mile, computed rather than published
County seat
Dallas
Seat of county government.
Established
1846
179 years ago
Largest city
Dallas city
Population 1,245,355 for the whole place, which extends beyond this county.

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 Dallas 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 Dallas 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 791 by 800 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 Dallas 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
Population2,661,3972nd of 2548th of 3,144
Land area873.2 sq mi177th of 254931st of 3,144
Population density3,048 per sq mi1st of 25435th of 3,144
Median household income$76,54744th of 254745th of 3,143

Full data for Dallas County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population2,661,397Vintage 2025 Population Estimates
Population in 20202,610,802Vintage 2025 Population Estimates
2020 estimates base?2,612,087Vintage 2025 Population Estimates
Land area873.2 sq mi2025 Gazetteer Files
Water area35.5 sq mi2025 Gazetteer Files
Total area908.6 sq mi2025 Gazetteer Files
Population density?3,048 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$76,547American Community Survey 2020-2024 5-Year Estimates
Median home value$303,000American Community Survey 2020-2024 5-Year Estimates
Median age34.1American Community Survey 2020-2024 5-Year Estimates
Households982,737American Community Survey 2020-2024 5-Year Estimates
Housing units1,064,965American 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
+19,113
37,108 births, 17,995 deaths
Net migration
-21,314
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 Dallas 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
Tarrant CountyTexas30 mi2,248,466
Ellis CountyTexas30 mi240,867
Collin CountyTexas19 mi1,297,179
Kaufman CountyTexas19 mi209,235
Rockwall CountyTexas12 mi140,738
Denton CountyTexas11 mi1,069,346

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

Side by side

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.