Rockdale's early voting turnout fell just slightly behind the 2008 early voting turnout, mirroring the state, but still reached more than half of the county's active registered voters.
About 53.6 percent, or 27,172 voters, cast their ballots early in Rockdale by the end of Friday, the last day of early voting.
In 2008, about 55 percent of Rockdale's active registered voters came out for early voting.
However, the early voting period has been shorted this year from 45 days to 21 days, which makes comparisons more complicated.
State-wide, Georgia's early voting appears to have fallen just short of the 2 million ballots, or about 53 percent, cast before the 2008 election.
As of Friday, almost 1.9 million people had either voted in person or mailed in ballots. That's more than a third of all registered Georgia voters. The total is not final, as elections officials expect more mail-in ballots to arrive through Election Day.
Most demographic groups are down slightly from their 2008 totals. Hispanic men and women are exceptions. Combined, they have cast 15,666 ballots, up from 14,914 four years ago.
Asian-Americans are also up slightly, casting 12,159 ballots compared to the previous 12,017.
African-American voters made up about a third of the early ballots received so far this year, more than their 30 percent share of all registered voters. Their 653,070 early ballots are about 93 percent of their 2008 total.
White voters' have cast about 59 percent of the early ballots, essentially even with their proportion of the registered voter list.
President Barack Obama and Republican challenger Mitt Romney have strongly encouraged early voting, particularly in swing states. Obama ran up large leads in most swing states four years ago.
The GOP emphasis has cut into that advantage this year, though it remains to be seen whether that comes from an enthusiasm advantage or simply reliable voters deciding to vote early instead of on Election Day.
Neither presidential campaign invested heavily in a Georgia turnout effort. The state began the election cycle on some observers' lists of possible battlegrounds, but polls suggest that Romney should claim Georgia's 16 electoral votes by a decisive margin.
Obama lost the state by 5 percentage points in 2008, outperforming recent Democratic nominees. Bill Clinton was the last Democrat to win here, though he did so with just 43 percent of the vote in an election that featured independent Ross Perot.