Town Hall Address 509 South Alton Blvd. Alton, TX 78573-6914 United States- Hidalgo County Website http://www.alton-tx.gov/ Zoning 956-432-0760 509 South Alton Blvd. Alton, TX 78573-6914 United States Town Clerk 956-432-0760 509 South Alton Blvd. Alton, TX 78573-6914 United States Tax Collector 956-432-0760 509 South Alton Blvd. Alton, TX 78573-6914 United States County Hidalgo