Town Hall Address 15531 W Green Bay Road Evansville, WI 53536 United States- Rock County Website https://www.tn.union.wi.gov Town Clerk 608-736-7070 15531 W Green Bay Road Evansville, WI 53536 United States Tax Collector 608-736-7070 15531 W Green Bay Road Evansville, WI 53536 United States County Rock