Dallas County is the second-most populous county in the U.S. state of Texas. As of the 2020 U.S. census, the population was 2,613,539, making it the ninth-most populous county in the country. Dallas County is included in the Dallas-Arlington-Fort Worth metropolitan statistical area—colloquially referred to as the Dallas–Fort Worth metroplex. Municipal expansion within Dallas County has blurred the geographic lines between cities and between neighboring counties.
Its county seat is the city of Dallas, which is also Texas’ third-largest city and the ninth-largest city in the United States. The county was founded in 1846 and was possibly named for George Mifflin Dallas, the 11th Vice President of the United States under U.S. President James K. Polk.
Name: | Dallas County |
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FIPS code: | 48-113 |
State: | Texas |
Founded: | March 30, 1846 |
Named for: | George M. Dallas |
Seat: | Dallas |
Largest city: | Dallas |
Total Area: | 908.54 sq mi (2,353.1 km²) |
Land Area: | 873.06 sq mi (2,261.2 km²) |
Total Population: | 2,613,539 |
Population Density: | 2,994/sq mi (1,156/km²) |
Time zone: | UTC−6 (Central) |
Summer Time Zone (DST): | UTC−5 (CDT) |
Website: | www.dallascounty.org |
Dallas County location map. Where is Dallas County?
Dallas County Road Map
Geography
According to the U.S. Census Bureau, the county has a total area of 909 square miles (2,350 km), of which 873 square miles (2,260 km) is land and 36 square miles (93 km) (4.0%) is water. 3,519 acres of the county is contained within 21 county-owned nature preserves, which were acquired through the county’s Open Space Program.
Adjacent counties
- Denton County (northwest)
- Collin County (northeast)
- Rockwall County (east)
- Kaufman County (southeast)
- Ellis County (south)
- Tarrant County (west)