Welcome to the Algonquin Township

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Algonquin Township is the largest township in McHenry County, with a population of 88,389 as of the 2010 Census. The Township includes the communities of Algonquin, Barrington Hills, Cary, Crystal Lake, Fox River Grove, Lake In The Hills, Village of Port Barrington, Lakewood, Oakwood Hills, and Trout Valley.

We are located at 3702 U.S. Highway 14, Crystal Lake, IL, 60014. Business hours are Monday through Friday, 8:00 am. to 4:00pm. The Assessor’s office is open until 5:00 pm.

Monthly Township meetings, which take place at the Township office, are held on the second Wednesday of each month at 7pm.  In addition, the Township conducts an Annual Town Meeting on the second Tuesday in April at 7pm.

The Algonquin Township team takes considerable pride in serving the needs of residents in our vast geographic area.  Please let us know how we can be of service to you.

Recent News


EARLY VOTING will be from March 20th to April 3rd, (Monday thru Friday) from 9:00 am to 4:00 pm (Saturdays) [...]

AARP Drivers Safety Class

AARP Drivers Safety Class offered May 17th and 18th from 9:00 am to 1:00 pm. Must attend both sessions. Call [...]

Document Shredding

Document Shredding Event dates and times pending. 3 boxes per household are allowed for Algonquin Township residents only.

Upcoming Events

CL Bridge Club

CL Bridge Club

March 25 @ 9:00 am - 12:00 pm
|Recurring Event (See all)

An event every week that begins at 9:00am on Saturday, repeating indefinitely

Overeaters Anonymous Mtg.

Overeaters Anonymous Mtg.

March 26 @ 6:00 pm - 7:00 pm
|Recurring Event (See all)

An event every day that begins at 6:00pm, repeating indefinitely

Bridge Club

Bridge Club

March 27 @ 9:30 am - 3:00 pm