You won't wait less than an hour today, the last day of early voting in Cobb County. At some polling places, prepare for 3 hours.

Voters lined the sidewalk at the East Cobb Government Center on Lower Roswell Road about 10 a.m. The county estimated that wait there to be between 2 and 3 hours.

As of 11:45 a.m., the shortest waits in the entire county were in Mableton at the South Cobb Community Center and the South Cobb Recreation Center in Austell. How long were those wait times? Between an hour and an hour and a half.

Those voters will join the 138,692 people have cast ballots since early voting started Oct. 17.

More than 2.1 million voters have already cast their ballots in Georgia, some 200,000 more than had voted during the entire 2012 early voting period.

The early voting line just after 10 a.m. at the East Cobb Government Center on Lower Roswell Road. Friday is the last day to vote early in Georgia. Brian O'Shea/AJC.

Credit: Brian O'Shea

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Credit: Brian O'Shea

As of Thursday, a third of the county's registered voters had already cast their ballots, according to Janine Eveler, head of Cobb elections. And 35 percent of the county's voter base have been issued a ballot.

Thursday alone, 19,487 people voted in person, according to election data.

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In fact, the record turnout has been happening all week since nine new polling locations opened Monday. The long lines and record heat, resulted in a a medical emergency for one person while waiting to vote.

Eveler recommended wearing comfortable shoes along with bringing a book, bottled water, portable chair and umbrella in case of an outside line.

If you want to know how long you might have to wait, check out a new tool from the county:

The Atlanta Journal-Constitution has broken down how each neighborhood in Cobb Count voted during the 2012 election. Check out the data and find our neighborhood here.