Town Hall Address N6468 S Farmington Rd. Watertown, WI 53094 United States- Jefferson County Website http://www.townoffarmington.org Town Clerk 920-699-2348 W3157 Bakertown Road Helenville, WI 53137 United States Tax Collector 920-699-2165 N7005 Waldmann Lane Watertown, WI 53094 United States County Jefferson