Longmont, CO

ZIP code 80503 is located in Longmont, Colorado. This area is home to iconic landmarks such as the Boulder County Fairgrounds and Twin Peaks Golf Course. Residents and visitors can also explore the beautiful Longmont Museum and Cultural Center, which showcases local history and art. Additionally, St. Vrain State Park offers outdoor enthusiasts opportunities for camping, fishing, and birdwatching in a serene natural setting.