De Smet is located in South Dakota. De Smet, South Dakota has a population of 1,128. De Smet is more family-centric than the surrounding county with 34.32% of the households containing married families with children. The county average for households married with children is 30.91%.
The median household income in De Smet, South Dakota is $71,875. The median household income for the surrounding county is $62,634 compared to the national median of $69,021. The median age of people living in De Smet is 45.3 years.
The average high temperature in July is 82.9 degrees, with an average low temperature in January of 5.5 degrees. The average rainfall is approximately 26.2 inches per year, with 42.3 inches of snow per year.
