Upper St. Johns HUC8 03080101
A 10,228 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
80
Healthy
Drought index
28
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 25 reporting
Median flow
168%
p67 of record
Water assets
4,311
201 springs · 2,021 wells
USGS gauges (29)
- BLUE SPRINGS NEAR ORANGE CITY, FL02235500137 cfsp38 · normal
- ST. JOHNS RIVER AT ASTOR, FL022361255,740 cfsp41 · normal
- SILVER GLEN SPRINGS NEAR ASTOR, FL0223616080 cfsp43 · normal
- BLACKWATER CREEK NEAR CASSIA, FL0223520051 cfsp52 · normal
- HOWELL CREEK NEAR ALTAMONTE SPRINGS, FL0223430815 cfsp55 · normal
- ST. JOHNS RIVER NEAR SANFORD, FL022345004,750 cfsp55 · normal
- HOWELL CREEK AT STATE HWY 434 NEAR OVIEDO, FL0223434472 cfsp56 · normal
- ST. JOHNS RIVER NEAR DE LAND, FL022360005,350 cfsp58 · normal
- TAYLOR CREEK NEAR COCOA, FL022324151 cfsp60 · normal
- GEE CREEK NEAR LONGWOOD, FL0223440014 cfsp61 · normal
- HOWELL CREEK NEAR SLAVIA, FL0223432436 cfsp65 · normal
- ECONLOCKHATCHEE RIVER NEAR OVIEDO, FL02233484374 cfsp67 · normal
- SOLDIER CREEK NEAR LONGWOOD, FL0223438414 cfsp67 · normal
- ECONLOCKHATCHEE RIVER NEAR CHULUOTA, FL02233500357 cfsp67 · normal
- ST. JOHNS RIVER ABOVE LAKE HARNEY NEAR GENEVA, FL022340004,650 cfsp68 · normal
- JANE GREEN CREEK NEAR DEER PARK, FL02231600427 cfsp75 · normal
- ST. JOHNS RIVER NEAR CHRISTMAS, FL022325004,130 cfsp75 · above normal
- WEKIVA RIVER NEAR SANFORD, FL02235000343 cfsp77 · above normal
- LT ECONLOCKHATCHEE R AT STATE HWY434 NR OVIEDO, FL02233475152 cfsp77 · above normal
- LITTLE WEKIVA RIVER NEAR ALTAMONTE SPRINGS, FL0223499034 cfsp78 · above normal
- ST. JOHNS RIVER NEAR COCOA, FL022324003,660 cfsp78 · above normal
- WOLF CREEK NEAR DEER PARK, FL0223220023 cfsp80 · above normal
- ST. JOHNS RIVER NEAR MELBOURNE, FL022320003,660 cfsp86 · above normal
- FT DRUM CREEK AT SUNSHINE ST PKY NEAR FT DRUM, FL02231342111 cfsp89 · above normal
- BLUE CYPRESS CREEK NEAR FELLSMERE, FL02231396233 cfsp89 · above normal
- S-253 WEIR NEAR FORT DRUM, FL022313220 cfsno long-term record
- PENNYWASH CREEK NEAR DEER PARK, FL022321551 cfsno long-term record
- LAKE JESUP OUTLET NEAR SANFORD, FL02234435993 cfsno long-term record
- SANLANDO SPRINGS NR LONGWOOD, FL0223499125 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 28 | 0 | 0/25 | p67 |
| 2026-10-21 | 28 | 0 | 0/25 | p68 |
| 2026-10-20 | 28 | 0 | 1/25 | p67 |
| 2026-10-19 | 28 | 0 | 2/25 | p69 |
| 2026-10-18 | 28 | 0 | 1/25 | p72 |
| 2026-10-17 | 28 | 0 | 1/25 | p74 |
| 2026-10-16 | 28 | 0 | 1/25 | p74 |
| 2026-10-15 | 69 | 0.56 | 1/25 | p74 |
| 2026-10-14 | 69 | 0.56 | 1/24 | p78 |
| 2026-10-13 | 69 | 0.56 | 1/24 | p77 |
| 2026-10-12 | 69 | 0.56 | 0/24 | p79 |
| 2026-10-11 | 69 | 0.56 | 0/24 | p82 |
| 2026-10-10 | 69 | 0.56 | 0/24 | p80 |
| 2026-10-09 | 69 | 0.56 | 0/25 | p78 |
Top water assets
- 66Structure 164reservoir
- 66Sanford Cooling Reservoirreservoir
- 65SWEETWATER SPRINGSspring
- 65Silver Glen Springs Near Astor, Flspring
- 65Mcarthur 1&2 Wspreservoir
- 65Econlockhatchee River Near Oviedo, Flriver
- 65Lake Jesup Outlet Near Sanford, Flriver
- 65Howell Creek At State Hwy 434 Near Oviedo, Flriver
- 65CROAKER HOLE SPRINGspring
- 65Little Wekiva River Near Altamonte Springs, Flriver