North Texas generally refers to the counties in the north-central part of the state, excluding those in the Texas Panhandle. It covers the metro areas of Dallas-Fort Worth and Wichita Falls and their surrounding counties. It is the state's most populous region. A combined approximately 9,000 acres were listed for sale in Collin County, Texas, recently; the combined value of all Collin County land for sale was $2 billion. Collin County ranks ninth out of 254 counties in Texas for the total number of acres of land currently advertised for sale. Among cities in Collin County with farms, ranches, and rural real estate for sale, Prosper had the most land for sale. Collin County is the 180th largest county (886 square miles) in Texas. It's located in the Dallas Prairie Texas region of the state.