Loading live conditions…
Loading models…
Water Level StatusNo source
We haven't found a reliable water-level source for Cowan Lake yet. Weather, wind, and the sailing score still work.
Know one? We need a gauge ID, agency feed, or utility page.
Loading radar…
Lake guide
Ramps
Cowan Lake State Park boat rampCowan Lake State Park, Wilmington, OH 45177
MapCharts
Depth chartMax depth 42 ft · ODNR Cowan Lake Fishing Map
PDFInteractiveContact & rules
Boating & yacht clubs
CL
Cowan Lake Sailing AssociationEst. 1954 — 12 fleets / 250+ boats; ~65 races a season + the Flying Pig Regatta; FSSA host site
VisitAbout Cowan Lake
Cowan Lake is a 692-acre reservoir in Ohio, completed in 1950, managed by Ohio DNR (Cowan Lake State Park). Lakebrief does not have a real-time water-level feed for this lake; the dashboard reports wind and weather only. The main public launch is Cowan Lake State Park boat ramp at Cowan Lake State Park, Wilmington, OH 45177. The Cowan Lake Sailing Association is the active sailing club on the water.