Town Hall Address 9500 Civic Center Dr. Thornton, CO 80229 United States- Adams, Weld County Website https://www.thorntonco.gov/Pages/default.aspx Zoning 303-538-7295 9500 Civic Center Dr. Thornton, CO 80229 United States Fire District 303-538-7602 2300 Thornton Pkwy Thornton, CO 80229 United States Town Clerk 303-538-7230 9500 Civic Center Dr. Thornton, CO 80229 United States Tax Collector 303-538-7255 9500 Civic Center Dr. Thornton, CO 80229 United States Code Enforcement 303-538-7517 9500 Civic Center Dr. Thornton, CO 80229 United States Town Hall Hours Monday - Friday: 8:00 AM - 5:00 PM County Adams, Weld