Without a picture, it's really tough. But maybe you can match it up to a picture?
At this point, I am certainly hoping it is non-venomous. So here's a list of non-venomous found in Georgia.
Eastern Green Water Snake
Brown Water Snake
Red or Yellow-Bellied Water Snake
Banded Water Snake
Northern Water Snake
Banded Water Snake
Striped Crayfish Snake
Glossy Crayfish Snake
Black Swamp Snake
Brown Snake
Red-Bellied Snake
Eastern Ribbon Snake
Common Garter Snake
Smooth Earth Snake
Rough Earth Snake
Eastern Hognose Snake
Southern Hognose Snake
Ringneck Snake
Eastern Worm Snake
Pine Woods Snake
Mud Snake
Rainbow Snake
Racer
Coachwhip
Rough Green Snake
Corn Snake
Rat Snake
Pine Snake
Eastern/Black Kingsnake
Mole Kingsnake
Scarlet Kingsnake/Milk Snake
Scarlet Snake
Southeastern Crowned Snake
Eastern Indigo Snake
Central Florida Crowned Snake
These are the venomous snakes found in Georgia:
Copperhead
Pigmy Rattlesnake
Canebrake or Timber Rattlesnake
Cottonmouth
Eastern Diamondback Rattlesnake
Eastern Coral Snake
I haven't touched on the exotic (introduced) species, or possibility of a lost/released pet. But... It's always a possibility.
Here's a link to a site with a lot of Florida snake photos. Wrong state, but there's a lot of overlap.
http://www.southalley.com/snakes.html