Town Hall Address 118 S. Main St. LaGrange, MO 63448 United States- Lewis County Website https://www.cityoflagrangemo.gov Town Clerk 573-655-4301 118 S. Main St. LaGrange, MO 63448 United States Water 573-655-0162 703 S. 3rd St. LaGrange, MO 63448 United States Tax Collector 573-655-4301 118 S. Main St. LaGrange, MO 63448 United States County Lewis