Lower St. Johns HUC8 03080103
A 7,347 km² sub-basin of the South Atlantic-Gulf region in FL. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
75
Healthy
Drought index
76
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 8 reporting
Median flow
201%
p74 of record
Water assets
2,836
38 springs · 1,249 wells
USGS gauges (17)
- SOUTH FORK BLACK CREEK NEAR PENNEY FARMS, FL0224550064 cfsp54 · normal
- NORTH FORK BLACK CREEK NEAR MIDDLEBURG, FL0224600071 cfsp55 · normal
- POTTSBURG CREEK NR SOUTH JACKSONVILLE, FLA.0224651516 cfsp65 · normal
- CEDAR RIVER AT SAN JUAN AVENUE AT JACKSONVILLE, FL0224645948 cfsp71 · normal
- ORTEGA RIVER AT KIRWIN ROAD NEAR JACKSONVILLE,FL0224631844 cfsp77 · above normal
- DURBIN CREEK NEAR FRUIT COVE, FL022462002289 cfsp87 · above normal
- JULINGTON CRK AT OLD ST AUGUST RD NR BAYARD, FL02246160188 cfsp95 · much above normal
- ST. JOHNS RIVER AT JACKSONVILLE, FL02246500115,000 cfsp96 · much above normal
- ST. JOHNS R AT BUFFALO BLUFF NEAR SATSUMA, FL02244040no readingno long-term record
- HAW CREEK AB RUSSELLS LANDING NR ST JOHNS PARK FL02244333113 cfsno long-term record
- DUNNS CREEK NEAR SATSUMA, FL02244440no readingno long-term record
- DEEP CREEK AT SPUDS, FL02245260-3 cfsno long-term record
- POTTSBURG CRK AT US90 NR S. JACKSONVILLE, FL02246518-186 cfsno long-term record
- TROUT R NR JACKSONVILLE FLA02246621no readingno long-term record
- BROWARD RIVER BL BISCAYNE BLVD NR JACKSONVILLE, FL02246751490 cfsno long-term record
- DUNN CREEK AT DUNN CREEK RD NR EASTPORT, FL02246804-478 cfsno long-term record
- CLAPBOARD CREEK NR JACKSONVILLE, FL02246825no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 76 | 0 | 0/8 | p74 |
| 2026-10-20 | 76 | 0 | 0/8 | p81 |
| 2026-10-19 | 76 | 0 | 0/8 | p68 |
| 2026-10-18 | 76 | 0 | 1/7 | p69 |
| 2026-10-17 | 76 | 0 | 0/11 | p83 |
| 2026-10-16 | 76 | 0 | 0/11 | p85 |
| 2026-10-15 | 160 | 2.28 | 0/13 | p86 |
| 2026-10-14 | 160 | 2.28 | 0/12 | p90 |
| 2026-10-13 | 160 | 2.28 | 0/13 | p93 |
| 2026-10-12 | 160 | 2.28 | 0/13 | p94 |
| 2026-10-11 | 160 | 2.28 | 0/12 | p96 |
| 2026-10-10 | 160 | 2.28 | 0/10 | p96 |
| 2026-10-09 | 160 | 2.28 | 0/11 | p95 |
| 2026-10-08 | 200 | 9.86 | 0/10 | p95 |
Top water assets
- 66Lake Asbury Damreservoir
- 65Ortega River At Kirwin Road Near Jacksonville,Flriver
- 65North Fork Black Creek Near Middleburg, Flriver
- 65Ketter Causeway Damreservoir
- 65Asso.Minerals (Usa) Ltd. Damreservoir
- 65South Fork Black Creek Near Penney Farms, Flriver
- 65Pablo Creekriver
- 65Gibbs Avenue Damreservoir
- 65Haw Creek Ab Russells Landing Nr St Johns Park Flriver
- 65Bull Creekriver