2nd Installment Taxes Due July 31st: Reminder: 2nd Installment Taxes Due by July 31st Real Estate Taxes 2nd installment of Real Estate Taxes are due to the Iowa County Treasurer by July 31st. Payments should be made payable to Iowa County Treasurer and mailed to 222 N Iowa St | Dodgeville, WI 53533. Contact information for the Iowa County Treasurer and additional payment options can be found here: https://www.iowacounty.org/departments/Treasurer/paytaxes. Personal Property Taxes 2nd installment of Personal Property Taxes are due by July 31st. Payments should be made payable to Town of Brigham and mailed to 407 Business ID | Barneveld, WI 53507.