Around here
Around Little Sioux River
Source: USGS GNIS · Public land: USGS PAD-US
About this river
Little Sioux River is a 37.8 mile river. Streamflow is measured at the USGS gauge Little Sioux River at Linn Grove, IA (site 06605850). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1973 to 2026
Little Sioux River typically runs highest in April, at a median 1,220 cfs, and lowest in September, at 143 cfs. The highest flow on record for any single day is 49,700 cfs, in 2024.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 144 | 47 to 289 |
| February | 170 | 49 to 398 |
| March | 604 | 262 to 1,720 |
| April | 1,220 | 571 to 2,225 |
| May | 1,200 | 505 to 2,320 |
| June | 1,120 | 588 to 2,150 |
| July | 486 | 230 to 1,330 |
| August | 209 | 119 to 448 |
| September | 143 | 69 to 418 |
| October | 167 | 72 to 661 |
| November | 236 | 81 to 652 |
| December | 190 | 74 to 414 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 54 years of record. Statistics published by the US Geological Survey for Little Sioux River at Linn Grove, IA (site 06605850). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Little Sioux River. Ramp data comes from the USGS national boat-ramp inventory.
- Sioux Rapids City ParkLittle Sioux RiverPublic
- Kindlespire ParkLittle Sioux RiverPublic
- Little Sioux Wildlife AreaLittle Sioux RiverPublic
- West Leach ParkLittle Sioux RiverPublic
- Emerson Bay State Recreation AreaWest Okoboji LakePublic
- Minnewashta Lake Minnewashta LakeMinnewashta LakePublic
- Oak Hill MarinaMinnewashta LakeRestricted
- Upper GarUpper Gar LakePublic
Made to print
Put Little Sioux River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Little Sioux River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
