How many public stream gauges does Waderly index in Illinois?
Waderly currently indexes 358 public USGS stream gauges in Illinois. Examples on this page include 22n7w-28.5a (il Tree Nursery), 22n7w-29.1d3 (dp-2), 22n7w-29.1d4 (sh-2).
Live water levels for every USGS stream gauge in Illinois, organized by river basin. Jump to a basin below, or open any gauge for current flow, gauge height, water temperature, and fishing conditions before you go.
Grouped by USGS hydrologic basin (largest first) — every indexed gauge is listed, nothing hidden behind a featured subset.
142 USGS gauges in the Upper Illinois watershed (HUC 0712).
88 USGS gauges in the Lower Illinois watershed (HUC 0713).
50 USGS gauges in the Upper Mississippi-Kaskaskia-Meramec watershed (HUC 0714).
26 USGS gauges in the Rock watershed (HUC 0709).
25 USGS gauges in the Wabash watershed (HUC 0512).
7 USGS gauges in the Lower Ohio watershed (HUC 0514).
5 USGS gauges in the Upper Mississippi-Iowa-Skunk-Wapsipinicon watershed (HUC 0708).
5 USGS gauges in the Upper Mississippi-Salt watershed (HUC 0711).
3 USGS gauges in the Northeastern Lake Michigan watershed (HUC 0406).
3 USGS gauges in the Southwestern Lake Michigan watershed (HUC 0404).
3 USGS gauges in the Upper Mississippi-Maquoketa-Plum watershed (HUC 0706).
1 additional gauge not yet assigned to a river basin.
Fishing the border? Check river levels in nearby states:
Waderly currently indexes 358 public USGS stream gauges in Illinois. Examples on this page include 22n7w-28.5a (il Tree Nursery), 22n7w-29.1d3 (dp-2), 22n7w-29.1d4 (sh-2).
This state hub links to every indexed Waderly gauge page in Illinois, so you can jump from a statewide view into current flow, gauge height, water temperature, and weather for individual rivers and creeks.
The Illinois hub is a crawlable index of the full state network. It makes it easier to compare nearby waters, discover smaller creeks you may not search by name, and reach every gauge page from one place.
Waderly supports public stream gauges across all 50 states. This Illinois page includes the full state index, so search engines and users can reach every gauge from one crawlable hub.
These pages are built from the public USGS stream-gauge network and linked into Waderly's map so anglers, paddlers, and waders can move from a broad state view into specific rivers quickly.