Town Hall Address 10405 St. Charles Rock Road St. Ann, MO 63074 United States- St. Louis County Website https://www.stannmo.org Zoning 314-427-8009 10405 St. Charles Rock Road St. Ann, MO 63074 United States Town Clerk 314-427-8009 10405 St. Charles Rock Road St. Ann, MO 63074 United States County St. Louis