De Smet, SD

Zip code 57231 covers the town of De Smet, South Dakota. Known for its ties to Laura Ingalls Wilder, author of the "Little House on the Prairie" series, De Smet features landmarks like the Laura Ingalls Wilder Historic Homes, the Ingalls Homestead, and the Laura Ingalls Wilder Memorial Society. Visitors can explore the pioneer history that inspired Wilder's beloved books at these iconic sites in ZIP code 57231.