Selby is located in South Dakota. Selby, South Dakota has a population of 734. Selby is less family-centric than the surrounding county with 28.49% of the households containing married families with children. The county average for households married with children is 30.28%.
The median household income in Selby, South Dakota is $49,500. The median household income for the surrounding county is $46,623 compared to the national median of $57,652. The median age of people living in Selby is 45.1 years.
The average high temperature in July is 84.5 degrees, with an average low temperature in January of 4 degrees. The average rainfall is approximately 19 inches per year, with 31.1 inches of snow per year.