Woodburn, KY

ZIP code 42170 covers the town of Smiths Grove, Kentucky. This area is home to the Smiths Grove Historic District, which features buildings dating back to the early 19th century. The town is also known for its proximity to Mammoth Cave National Park, the world's longest known cave system. Visitors can explore the park's vast underground chambers and tunnels, making ZIP code 42170 a popular destination for outdoor enthusiasts and history buffs alike.