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 total of almost 2,000 acres were listed for sale in Texas's Rockwall County recently, representing a total value of $419 million in Rockwall County land and rural real estate for sale. Rockwall County ranks 56th out of 254 counties in the Lone Star State for the total acreage of land currently advertised for sale. Rockwall had the most land for sale. Rockwall County is the 254th biggest county (148 square miles) in Texas. It's located in the Dallas Prairie Texas region of the state.