Town Hall Address 5401 Independence Road Weldon Spring, MO 63304 United States- St. Charles County Website https://weldonspring.org Town Clerk 636-441-2110 Ext. 103 5401 Independence Road Weldon Spring, MO 63304 United States Tax Collector 636-441-2110 Ext. 105 5401 Independence Road Weldon Spring, MO 63304 United States County St. Charles