Colquitt County is a county in the U.S. state of Georgia. As of the 2010 census, the population was 45,498. The county seat is Moultrie. The county was created February 25, 1856 and is named for Walter Terry Colquitt, a U.S. senator.Colquitt County comprises the Moultrie, GA Micropolitan Statistical Area.It is the current hometown of U.S. Senator Saxby Chambliss.