Assessor

Hello McHenry Township Residents,

Summer is in full swing!

There is much activity in the Township with new construction, including the new Redwood Apartment Homes, the 2nd phase of the homes in Remington Grove and several new and existing commercial properties.  

As a reminder, you may see our Township vehicles in your area, and this is an indication that we are updating our property records to make sure we have everything correct. My field staff is there only to collect information, including current photos and any updated information needed. If you have additional questions, please contact my office. 

Beginning in 2026, the McHenry County Supervisor of Assessments Office will no longer be mailing the Property Assessment Notices to all properties. Notices will be sent only to those properties that have had a change that my office has made, or if they are a farm property, or new construction. The Property Assessments will be available online, and you can go to:  http://mchenryil.devnetwedge.com/ 

After entering your parcel number, on the upper left side, click Property Assessment Notice. 

To find information on how to obtain your notice, or should you have questions, please contact the Supervisor of Assessments Office at (815) 334-4290. 

Sincerely, 

Mary Mahady, C.I.A.O.  – McHenry Township Assessor

If you need assistance, feel free to call us at (815) 385-0175 or send an 

email to: assessor@mchenrytownship.com