County of Iroquois issued the following announcement on May 15.
Press Release from Iroquois County Treasurer Kurt Albers:
Due to extenuating circumstances beyond Iroquois County’s control, the 2018 payable in 2019 real estate tax bills have not yet been computed, printed, or mailed. Release of the tax bills may be delayed from 30 to 60 days. Once the tax bills are mailed, the first due date will be 30 days later.
Original source can be found here.