County Clerk's Office - Joseph J. Tirio, McHenry County Clerk

Voter Registration

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Only properly registered electors may vote in an Election as provided by the Permanent Registration of Electors Law of Illinois.

The law requires Registered Voters to keep their name and address current. You CANNOT VOTE for Local Candidates if you are not properly registered. You CANNOT VOTE on any local propositions if you are not properly registered. Please contact the County Clerk’s office at (815) 334-4242 if you have changed your name and/or address and have not yet notified the County Clerk’s office.

Remember, It Is Your Right To Vote! 

McHenry County REGISTERED VOTERS, who do not have a voter’s registration card or who have a question regarding their registration, should contact the County Clerk’s Office at: (815) 334-4242. 


Register To Vote In Person

Office of McHenry County Clerk
McHenry County Administration Building
667 Ware Road, Suite 107
Woodstock, IL 60098

Hours: Monday through Friday, 8:00am to 4:30pm

Register to Vote Online

Register to Vote online through the Illinois Board of Elections

Register to Vote by Mail

Voter Registration Form - English [PDF]