Largest rivers in Georgia by average flow
Active USGS stream gauges in Georgia, ranked by average flow. The Altamaha River at Doctortown, GA gauge leads with 12,190 cfs.
| Rank | Name | Average flow |
|---|---|---|
| 1 | Altamaha River at Doctortown, GA | 12,190 cfs |
| 2 | Savannah River near Clyo, GA | 10,691 cfs |
| 3 | Altamaha River at Us 221, near Charlotteville, GA | 9,518 cfs |
| 4 | Altamaha River near Everett City, GA | 9,137 cfs |
| 5 | Savannah River at Burtons Ferry Br near Millhaven, GA | 8,629 cfs |
| 6 | Savannah River at Augusta, GA | 8,594 cfs |
| 7 | Flint River at Bainbridge, GA | 7,643 cfs |
| 8 | Savannah River near Waynesboro, GA | 7,205 cfs |
| 9 | Chattahoochee River at Spur 39, near Omaha, GA | 6,991 cfs |
| 10 | Flint River at Riverview Plantation, near Hopeful,Ga | 6,140 cfs |
| 11 | Chattahoochee River at 14Th St, at Columbus, GA | 5,763 cfs |
| 12 | Flint River at Newton, GA | 5,609 cfs |
| 13 | Coosa River Mayos Bar near Rome, GA | 5,603 cfs |
| 14 | Flint River at Albany, GA | 5,163 cfs |
| 15 | Ocmulgee River at Lumber City, GA | 4,873 cfs |
| 16 | Chattahoochee River at West Point, GA | 4,728 cfs |
| 17 | Oconee River near Mount Vernon, GA | 3,994 cfs |
| 18 | Ocmulgee River at Abbeville, GA | 3,823 cfs |
| 19 | Oconee River at Dublin, GA | 3,799 cfs |
| 20 | Flint River at Ga 32, near Oakfield, GA | 3,640 cfs |
| 21 | Chattahoochee River at Ga 100, at Franklin, GA | 3,591 cfs |
| 22 | Chattahoochee River near Whitesburg, GA | 3,364 cfs |
| 23 | Ocmulgee River at Us 341, at Hawkinsville, GA | 3,349 cfs |
| 24 | Chattahoochee River at Ga 280, near Atlanta, GA | 3,179 cfs |
| 25 | Chattahoochee River near Fairburn, GA | 3,040 cfs |
| 26 | Chattahoochee River above Bear Creek, near Rico, GA | 2,832 cfs |
| 27 | Flint River at Ga 26, near Montezuma, GA | 2,784 cfs |
| 28 | Oostanaula River near Rome, GA | 2,760 cfs |
| 29 | Oconee River near Oconee, GA | 2,696 cfs |
| 30 | Chattahoochee River at Atlanta, GA | 2,655 cfs |
How the Average flow figures spread in Georgia
- The ranking covers the 278 gauges in Georgia that have a recorded average flow in this dataset.
- The highest is Altamaha River at Doctortown, GA at 12,190 cfs; the lowest is Wheeler Creek at Bill Cheek Road, near Auburn, GA at 1.3 cfs.
- The median average flow is 142 cfs.
- The gap between #1 Altamaha River at Doctortown, GA and #2 Savannah River near Clyo, GA is 1,499 cfs.
- The page table lists the top 30.
Data: U.S. Geological Survey (USGS) (public domain, U.S. federal data).· Updated 2026-11-02 · Text generated from the data and checked against it.
Live values are provisional USGS data. Measurements only, not a safety assessment — for flood warnings see the National Weather Service.