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LakeQuality
Max depth
Not measured
Surface area
760 acres
Public access
No public access on record
Water quality
Grade D
Best season
Not established
County
Macoupin County, Illinois
Wakesurf suitability
Fair

Depth unrated · Room Fair · limited data

About the water

Otter Lake covers roughly 760 acres, giving it room for a wake-boat setup when conditions cooperate. Public access varies — confirm a launch before you go. Illinois sets statewide wakesurf rules, and individual lakes often add no-wake zones, hours, or horsepower limits — check the Illinois rules page and the local ordinance before launching.

This rating classifies measured depth and surface area against published wake-sport guidance. It is not a safety clearance and not permission to ride: local no-wake zones, hours, and horsepower limits are set by the county, lake district, or land manager, and they take precedence. Lake measurements from Illinois DNR.

Where to stay near Otter Lake

Top-rated places to stay near Otter Lake

See the full where-to-stay map for Otter Lake

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Frequently Asked Questions

Otter Lake rates Fair for wakesurf suitability. Workable, but tighter on depth or room than ideal. The rating is based on its measured surface area of 760 acres. This is a read of the water's dimensions, not legal permission — check the Illinois rules and the local authority for this lake before you launch.

No maximum-depth measurement is on record for Otter Lake in the state agency data we use, so its depth factor is unrated. We do not estimate depth.

Otter Lake carries a LakeQuality water-quality grade of D, computed from EPA and state monitoring data — Secchi clarity, total phosphorus, and chlorophyll-a. That is a separate question from wakesurf suitability: a lake can be excellent to ride and mediocre to swim in, or the reverse. See the full lake page for the grade breakdown.

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