Understanding Your PIN (Parcel Number)

Documents indicating your parcel number may have fourteen or sixteen digits (the 14 digit parcel number simply omits the first two digits, or computer code). The last four numbers are usually zeros, unless the parcel is a condominium.

So, if you need to obtain your full 16-digit parcel number and you have a 14-digit parcel number in front of you, find the number in the Township Number column on the table below which matches the first two digits of your parcel number. The corresponding Computer Code must be placed in front of the 14-digit parcel number. Note that if you live in Reed, Custer, or Wesley township, you may need to look at your tax bill or call the Supervisor of Assessments at (815) 740-4648 to determine your township since these 3 townships share 2 township codes.

Example:

You have a 14 Digit parcel number:
01 - 05 - 100 - 005 - 0000

The first two digits are 01 (the township number). Looking at the table below, you find the number in the Township Number column  which matches these digits. The corresponding computer code is 07. Placing these digits in front of the 14 digit parcel number results in your full 16 digit number. This is the number you will use on the Automated Tax Information line.

16 Digit parcel number:
07 - 01 - 05 - 100 - 005 - 0000

Computer Code Locator Table