Town Hall Address 205 N River St. Seguin, TX 78155 United States- Guadalupe County Website https://seguintexas.gov Zoning 830-386-2505 108 E Mountain St. Seguin, TX 78155 United States Town Clerk 830-401-2300 205 N River St. Seguin, TX 78155 United States Water 830-401-2460 205 N River St. Seguin, TX 78155 United States Sewer 830-401-2460 205 N River St. Seguin, TX 78155 United States Tax Collector 830-386-2546 205 N River St. Seguin, TX 78155 United States Code Enforcement 830-386-2505 108 E Mountain St. Seguin, TX 78155 United States County Guadalupe