Are you registered to vote in the Presidential Primary Election on March 15? To vote in Illinois, you must be a United States citizen, 18 years old on or before Election Day, live in your election precinct at least 30 days prior to Election Day, not be convicted and in jail, and not claim to vote anywhere else. The deadline to register to vote for the primary election is February 16. To register, go to City Hall during regular business hours. You must have two forms of identification, both with signatures and current address. You can also register online with a valid Illinois driver's license or state ID.