De Smet, SD

ZIP code 57231 covers the town of De Smet, South Dakota. This area is most famously known as the childhood home of author Laura Ingalls Wilder, whose family's historic homestead and the Little House on the Prairie site are major attractions. Visitors can also explore the Laura Ingalls Wilder Memorial Society and the De Smet Depot Museum, both of which provide insight into the pioneer life depicted in Wilder's beloved books.