Johnston County is the name of two counties in the United States: *

Johnston County, North Carolina Johnston County is a county located in the U.S. state of North Carolina. As of the 2020 census, the population was 215,999. Its county seat is Smithfield. Johnston County is included in the Raleigh, NC Metropolitan Statistical Area, which is ...

Johnston County, Oklahoma Johnston County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 10,957. Its county seat is Tishomingo. It was established at statehood on November 16, 1907, and named for Douglas H. Johnston, a go ...

See also