Little Sioux HUC8 10230003
A 7,318 km² sub-basin of the Missouri region in IA, MN. 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
14
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 4 reporting
Median flow
302%
p71 of record
Water assets
4,264
0 springs · 2,072 wells
USGS gauges (4)
- Ocheyedan River near Spencer, IA06605000138 cfsp64 · normal
- Little Sioux River at Linn Grove, IA06605850432 cfsp65 · normal
- Little Sioux River near Turin, IA066075001,250 cfsp76 · above normal
- Little Sioux River at Correctionville, IA06606600832 cfsp83 · above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 14 | 0 | 0/4 | p71 |
| 2026-10-20 | 14 | 0 | 0/4 | p73 |
| 2026-10-19 | 14 | 0 | 0/4 | p73 |
| 2026-10-18 | 14 | 0 | 0/4 | p71 |
| 2026-10-17 | 14 | 0 | 0/4 | p68 |
| 2026-10-16 | 14 | 0 | 0/4 | p65 |
| 2026-10-15 | 14 | 0 | 0/4 | p63 |
| 2026-10-14 | 14 | 0 | 0/4 | p64 |
| 2026-10-13 | 14 | 0 | 0/4 | p66 |
| 2026-10-12 | 14 | 0 | 0/4 | p65 |
| 2026-10-11 | 14 | 0 | 0/4 | p65 |
| 2026-10-10 | 14 | 0 | 0/4 | p63 |
| 2026-10-09 | 14 | 0 | 0/4 | p63 |
| 2026-10-08 | 29 | 0 | 0/4 | p65 |
Top water assets
- 65Lake Okabenareservoir
- 65Miller Creekriver
- 65Spring Creekriver
- 65Bitter Creekriver
- 65Little Sioux River At Correctionville, Iariver
- 65Little Sioux Riverriver
- 65West Fork Little Sioux Riverriver
- 65Willow Creekriver
- 65Little Sioux Riverriver
- 65Lake Bellareservoir