Brent A. Williams
Phone: (618) 658-8042
Welcome to Johnson County, Illinois.
2020 payable 2021 Property Tax Due Dates
1st installment - Friday, August 6, 2021
2nd installment - Friday, September 17, 2021
Annual Tax Sale - Monday, November 15, 2020 at 9 AM
Pay Online at govtechtaxpro.com or by Phone 1-844-697-4513
Search property tax information at johnsonil.devnetwedge.com
Payment Drop Box located next to door.
Johnson County Treasurer’s Office