57633 Frequently Asked Questions

A: ZIP Code 57633 is Located in Isabel South Dakota. Portions of 57633 are also in North Dewey, Isabel (town).

A: ZIP Code 57633 is Located Entirely in Dewey County South Dakota.

A: The Current Sales Tax in ZIP Code 57633 is 6.2%

A: The Area Code for 57633 is 605.

A: ZIP Code 57633 is in South Dakota State House of Representatives District 28A.

A: ZIP Code 57633 is in South Dakota State Senate District 28.

A: The 2022 population of ZIP Code 57633 is 402. The population growth rate in 57633 is -5.03%. The population density of 57633 is 2.

A: The majority race/ethnicity of people residing in 57633 is White (83.78%).

A: The median household income in 57633 is $70,250 (2021) and the average adjusted income is $198,230 (2021).