Lodgepole, SD

ZIP code 57640 covers the town of Eureka, South Dakota. This area boasts the majestic Gem Theatre, a historic landmark that has been showcasing movies since 1931. Eureka is also home to the Edmunds County Courthouse, a prominent government building in the heart of the community. The zip code 57640 encompasses a blend of small-town charm and important cultural and governmental institutions.