Longmont, CO

ZIP code 80503 encompasses parts of Longmont, Colorado, known for its picturesque views of the Rocky Mountains. Major landmarks in this area include McIntosh Lake, offering opportunities for fishing and hiking, as well as Union Reservoir, popular for boating and picnicking. Residents also enjoy proximity to the St. Vrain State Park, known for its abundant wildlife and recreational activities such as birdwatching and camping.