Johnston is located in South Carolina. Johnston, South Carolina has a population of 2,267. Johnston is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 24%.
The median household income in Johnston, South Carolina is $32,647. The median household income for the surrounding county is $53,528 compared to the national median of $66,222. The median age of people living in Johnston is 39.9 years.
The average high temperature in July is 91.8 degrees, with an average low temperature in January of 28.8 degrees. The annual precipitation is 48.65.