City of Thornton City of Thornton, 9500 Civic Center Drive, Thornton, CO 80229 Local: (303) 538-7200 [email protected] Visit Website Overview There's always plenty to do in Thornton! Related Articles Experience the Magic of Colorado’s Pikes Peak Train Plan a Colorado Vacation With Your Dog This Winter Awesome Adaptive Winter Sports in Colorado Colo-Road Trippin' Without Stopping for Gas Open-Air Arts: Colorado’s Creative Outdoor Spaces Adventurous & Adaptive Summer Sports in Colorado