Largest rivers in Florida by average flow
Active USGS stream gauges in Florida, ranked by average flow. The Apalachicola River near Sumatra,Fla gauge leads with 21,803 cfs.
| Rank | Name | Average flow |
|---|---|---|
| 1 | Apalachicola River near Sumatra,Fla | 21,803 cfs |
| 2 | Apalachicola River near Blountstown,Florida | 20,004 cfs |
| 3 | Apalachicola River at Chattahoochee Fla | 19,760 cfs |
| 4 | Apalachicola R.Ab Chipola Cutoff near Wewahitchka,Fl | 19,436 cfs |
| 5 | Suwannee River near Wilcox, Fla | 9,590 cfs |
| 6 | Suwannee River near Bell, Florida | 8,111 cfs |
| 7 | Suwannee River at Branford, Fla | 6,667 cfs |
| 8 | Choctawhatchee River near Bruce, Fla | 6,018 cfs |
| 9 | Suwannee River at Ellaville, Fla | 5,968 cfs |
| 10 | Suwannee River at Luraville, Fla | 5,785 cfs |
| 11 | Escambia River near Molino, Fla | 5,643 cfs |
| 12 | Suwannee River at Dowling Park, Florida | 5,180 cfs |
| 13 | Escambia River near Century, FL | 4,984 cfs |
| 14 | Choctawhatchee River at Caryville, Fla | 4,422 cfs |
| 15 | Choctawhatchee River near Pittman, Fla | 3,485 cfs |
| 16 | St. Johns River near De Land, FL | 3,089 cfs |
| 17 | St. Johns River near Sanford, FL | 2,383 cfs |
| 18 | Yellow River near Milton, Fla | 2,113 cfs |
| 19 | St. Johns River above Lake Harney near Geneva, FL | 1,860 cfs |
| 19 | Withlacoochee River near Lee, Fla | 1,860 cfs |
| 21 | Suwannee River at Suwannee Springs Fla | 1,760 cfs |
| 22 | Santa Fe River near Hildreth Fla | 1,706 cfs |
| 23 | Suwannee River at White Springs, Fla | 1,647 cfs |
| 24 | Caloosahatchee River at S-79, Nr.Olga, Fla | 1,635 cfs |
| 25 | Withlacoochee River at Us 41 at Dunnellon, FL | 1,481 cfs |
| 26 | Withlacoochee River near Pinetta, Fla | 1,438 cfs |
| 27 | Ochlockonee River near Bloxham, Fla | 1,432 cfs |
| 28 | Santa Fe River near Fort White, Fla | 1,429 cfs |
| 29 | Chipola River near Altha, Fla | 1,357 cfs |
| 30 | St. Johns River near Christmas, FL | 1,250 cfs |
How the Average flow figures spread in Florida
- The ranking covers the 292 gauges in Florida that have a recorded average flow in this dataset.
- The highest is Apalachicola River near Sumatra,Fla at 21,803 cfs; the lowest is Haulover Canal near Mims,Fl at -5.2 cfs.
- The median average flow is 61.5 cfs.
- The gap between #1 Apalachicola River near Sumatra,Fla and #2 Apalachicola River near Blountstown,Florida is 1,799 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.