Greenbrier is located in South Carolina. Greenbrier, South Carolina has a population of 1,617.
The median household income in Greenbrier, South Carolina is $30,230. The median household income for the surrounding county is $41,755 compared to the national median of $69,021. The median age of people living in Greenbrier is 35.1 years.
The average high temperature in July is 91.7 degrees, with an average low temperature in January of 30.2 degrees. The average rainfall is approximately 44.4 inches per year, with 0.5 inches of snow per year.