Illinois Election 2018 Schedule https://www.cookcountyclerk.com/agency/2018-elections
- February 20, 2018 - last day for voter registration for primary for deputy registrars.
- February 21 thru March 20, 2018 - Grace Period Registration and Voting
- March 4, 2018 - Last day for voters to register thru the state board of elections website.
- March 5, 2018 - First Day of Early Voting.
- March 6, 2018 - Last day for State Board of Elections or the election authority to have poll watcher credentials available for distribution.
- March 15, 2018 - Last day to request a MAIL BALLOT, including military and overseas voters.
- March 19, 2018 - Last day for early voting.
- March 20, 2018 - Last day MAIL BALLOTS can be postmarked.
- March 20, 2018 - GENERAL PRIMARY ELECTION: Polls open from 6:00 am to 7:00 pm.