Jefferson is located in South Dakota. Jefferson, South Dakota has a population of 667. Jefferson is less family-centric than the surrounding county with 23.9% of the households containing married families with children. The county average for households married with children is 26.64%.
The median household income in Jefferson, South Dakota is $69,000. The median household income for the surrounding county is $80,238 compared to the national median of $69,021. The median age of people living in Jefferson is 34 years.
The average high temperature in July is 85.4 degrees, with an average low temperature in January of 9.7 degrees. The average rainfall is approximately 29.8 inches per year, with 32.3 inches of snow per year.
