Saint Charles, MO

ZIP code 63304 is located in Saint Charles, Missouri. This area is known for its picturesque landscapes and family-friendly neighborhoods. Major landmarks in 63304 include the historic Weldon Spring Site, which once housed a uranium refining plant, and the popular August A. Busch Memorial Conservation Area, offering outdoor recreational activities like hiking and birdwatching. With a mix of suburban charm and natural beauty, 63304 is a sought-after zip code in the Saint Charles area.