Karns is located in Tennessee. Karns, Tennessee has a population of 92,232.
The median household income in Karns, Tennessee is $36,331. The median household income for the surrounding county is $52,458 compared to the national median of $57,652. The median age of people living in Karns is 32.6 years.
The average high temperature in July is 87.8 degrees, with an average low temperature in January of 27.2 degrees. The average rainfall is approximately 51.2 inches per year, with 6 inches of snow per year.