All of the answers you need regarding property taxes can be found on the Rock Island County Chief County Assessment Office website.  To access the website, click on the link for the Rock Island County Chief County Assessment Office link from our "Links" page On the right side of their home page you will see a list of "Chief County Assessment Links."  A few pages of interest include "Illinois Property Tax Cycle," "Seven Steps to Appeal an Assessment," "Property Tax Relief," and "Frequently Asked Questions."