'Dallas County, TX' definitions:

Dallas -- U.S. County in Texas

From: Gazetteer 2000
Name :
Dallas -- U.S. County in Texas
Population (2000) :
2218899
Housing Units (2000) :
854119
Land area (2000) :
879.598933 sq. miles (2278.150680 sq. km)
Water area (2000) :
28.959054 sq. miles (75.003602 sq. km)
Total area (2000) :
908.557987 sq. miles (2353.154282 sq. km)
Located within :
Texas (TX), FIPS 48
Location :
32.803579 N, 96.788828 W