57231 Frequently Asked Questions

A: ZIP Code 57231 is Located in De Smet South Dakota. Portions of 57231 are also in Mathews Township, De Smet Township, Spirit Lake Township, Manchester Township, Esmond Township, Baker Township (Kingsbury County), Hartland Township (Kingsbury County).

A: ZIP Code 57231 is Located Entirely in Kingsbury County South Dakota.

A: The Current Sales Tax in ZIP Code 57231 is 6.2%

A: The Area Code for 57231 is 605.

A: ZIP Code 57231 is in South Dakota State House of Representatives District 8.

A: ZIP Code 57231 is in South Dakota State Senate District 8.

A: The 2022 population of ZIP Code 57231 is 1733. The population growth rate in 57231 is -3.64%. The population density of 57231 is 7.

A: The majority race/ethnicity of people residing in 57231 is White (99.55%). The majority race/ethnicity of students attending public schools in 57231 is White(94.95%).

A: The median household income in 57231 is $72,639 (2021) and the average adjusted income is $304,720 (2021).