57538 Frequently Asked Questions

A: ZIP Code 57538 is Located in Herrick South Dakota. Portions of 57538 are also in West Gregory, East Gregory, Herrick (town).

A: ZIP Code 57538 is Located Entirely in Gregory County South Dakota.

A: The Current Sales Tax in ZIP Code 57538 is 4.2%

A: The Area Code for 57538 is 605.

A: ZIP Code 57538 is in South Dakota State House of Representatives District 21.

A: ZIP Code 57538 is in South Dakota State Senate District 21.

A: The 2022 population of ZIP Code 57538 is 258. The population growth rate in 57538 is -14.63%.

A: The majority race/ethnicity of people residing in 57538 is White (91.32%).

A: The median household income in 57538 is $40,000 (2021) and the average adjusted income is $57,450 (2020).