Grand Prairie is a city in Dallas County (USA), with a significant overlap into Tarrant County, and a minor overlap into Ellis County. As of the 2000 census, the city had a total population of 127,427. Grand Prairie is located at (32°42′55″N97°1′1″W) (32.715266, -97.016864). According to the United States Census Bureau, the city has a total area of 211.2 km² (81.5 mi²).