Johnston is located in South Carolina. Johnston, South Carolina has a population of 2,248. Johnston is less family-centric than the surrounding county with 5.42% of the households containing married families with children. The county average for households married with children is 22.73%.
The median household income in Johnston, South Carolina is $30,694. The median household income for the surrounding county is $55,183 compared to the national median of $69,021. The median age of people living in Johnston is 46.7 years.
The average high temperature in July is 92.2 degrees, with an average low temperature in January of 31.2 degrees. The average rainfall is approximately 46.1 inches per year, with 0.7 inches of snow per year.
