Lancaster is a city in Dallas County, Texas, United States. The population was 25,894 at the 2000 census. Locally, Lancaster is pronounced LANK-ist-er or LANK-us-ter, it is often mispronounce as LAN-CAS-ter.
Lancaster is a suburb of Dallas, Texas and is part of the Best Southwest area, which includes Lancaster, Cedar Hill, DeSoto, and Duncanville. Most of the city is in Dallas County. But a extremely small southern section spills over into Ellis County. All of the Ellis County section of Lancaster is plain land with only a few houses and roads in the southern section of the city.
Lancaster is located at 32°36′8″N 96°46′30″W / 32.60222°N 96.775°W / 32.60222; -96.775 .