St. Joseph HUC8 04100003
A 2,830 km² sub-basin of the Great Lakes region in IN, MI, OH. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
77
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
17%
of 6 reporting
Median flow
156%
p75 of record
Water assets
753
2 springs · 164 wells
USGS gauges (9)
- ST. JOSEPH RIVER NEAR FORT WAYNE, IN0418050074 cfsp9 · much below normal
- FISH CREEK AT HAMILTON, IN041777204 cfsp56 · normal
- CEDAR CREEK AT 18TH STREET AT AUBURN, IN0417952012 cfsp72 · normal
- CEDAR CREEK NEAR CEDARVILLE, IN0418000065 cfsp79 · above normal
- St Joseph River near Newville IN04178000226 cfsp89 · above normal
- MAUMEE RIVER AT COLISEUM BLVD AT FORT WAYNE, IN041829501,990 cfsp96 · much above normal
- E BR ST JOSEPH R AT TERRITORIAL RD NR WALDRON, MI0417708035 cfsno long-term record
- WEST BRANCH ST. JOSEPH RIVER NR NETTLE LAKE, OH0417726648 cfsno long-term record
- ST. JOSEPH R AT PARNELL AV AT FORT WAYNE, IN04180610no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 1/6 | p75 |
Top water assets
- 70Bridgewater Dairy - County Road 9well
- 66Lake `C' Damreservoir
- 66Lake Seneca Damreservoir
- 66Hurshtown Reservoir Damreservoir
- 66Lake `A' Damreservoir
- 65Oberlin-Fordreservoir
- 65Weatherwood Damreservoir
- 65Buck Creekriver
- 65Cedar Creek Near Cedarville, Inriver
- 65E Br St Joseph R At Territorial Rd Nr Waldron, Miriver