Sherri Hawkins, Green County Treasurer, reminds taxpayers that the second installment of real estate taxes is due by July 31st. Please make checks payable to the Green County Treasurer. The Treasurer’s office is located in the Courthouse, 1016 16th Avenue, on the 1st floor, Room #6. Office hours are from 8:00 a.m. – 4:30 p.m., Monday through Friday. To mail payments, please remit to the Green County Treasurer, 1016 16th Ave., Monroe WI 53566. If you wish to receive a receipt, please enclose a self addressed stamped envelope. To pay by credit card or by e-check, please visit the c...