Early Voting for the February 28, 2017 Consolidated Primary Election through February 27th. Suburban Cook County voters can vote early at any one of the four early voting sites throughout suburban Cook County, in addition to the Clerk’s main office at 69 W. Washington St., Chicago. Cook County residents who missed the voter registration deadline for this election can still register, at any of the early voting sites. During this grace period, voters not yet registered must provide two forms of identification – one with current address – to register, and they must vote in person at the time that they register. A government-issued photo ID is not required to vote early. Suburban Cook County voters can find a list of the early voting locations and their hours at cookcountyclerk.com/EarlyVoting. As a reminder, suburban Cook County voters must vote at a suburban Cook County site. Chicago voters should visit chicagoelections.com for more information.