Town Hall Address 1628 N. Little Ct. Janesville, WI 53548 United States- Rock County Website https://townofjanesville.org Town Clerk 608-754-1468 1628 N. Little Ct. Janesville, WI 53548 United States Tax Collector 608-754-1468 1628 N. Little Ct. Janesville, WI 53548 United States Town Hall Hours Monday & Wednesday: 12:00 PM - 5:00 PM and Thursday: 9:00 AM - 2:00 PM County Rock