57720 Frequently Asked Questions

A: ZIP Code 57720 is Located in Buffalo South Dakota. Portions of 57720 are also in South Harding, North Harding, Buffalo (town), Redig.

A: ZIP Code 57720 is Located Entirely in Harding County South Dakota.

A: The Current Sales Tax in ZIP Code 57720 is 6.2%

A: The Area Code for 57720 is 605.

A: ZIP Code 57720 is in South Dakota State House of Representatives District 28B.

A: ZIP Code 57720 is in South Dakota State Senate District 28.

A: The 2022 population of ZIP Code 57720 is 695. The population growth rate in 57720 is -6.67%. The population density of 57720 is 1.

A: The majority race/ethnicity of people residing in 57720 is White (98.34%). The majority race/ethnicity of students attending public schools in 57720 is White(96.59%).

A: The median household income in 57720 is $64,583 (2021) and the average adjusted income is $203,000 (2021).