Which is city is the county seat of a county with a standard abbreviation of SU?
Sumner County, Kansas Sumner County (standard abbreviation: SU) is a county located in the U.S. state of Kansas. As of the 2010 census, the population was 24,132. Its county seat is Wellington.
University Park, Texas University Park is an affluent city in Dallas County, Texas, United States, an inner northern suburb of Dallas. The population was 23,068 at the 2010 census. The city is home to Southern Methodist University.