Georgia's 149th county was named for Senator Augustus O. Bacon, a four-term U.S. Senator who died in office.
Alma's name is an acronym composed from the first letters in the names of Georgia's four state capitals: Augusta, Louisville, Milledgeville, and Atlanta. Alma is the only incorporated municipality in Bacon County.
There are three buildings on the National Register of Historic Places in Bacon County: the Bacon County Courthouse, the Alma Depot, and the Rabinowitz Building.