Reminder: Johnson County property taxes due Sept. 30, 2021
The first half of Johnson County property taxes were due on Wednesday, Sept. 1, 2021. Payments must be delivered to the Treasurer’s Office or postmarked by Thursday, Sept. 30, 2021, to avoid a 1 ½ percent monthly penalty that will begin on Friday, Oct. 1, 2021. The Treasurer’s Office is located on the first floor of the Johnson County Administration Building, 913 S. Dubuque St. in Iowa City. Hours are Monday through Friday, 7:45 a.m. to 5:30 p.m.