Clinton Lake, Mascoutin beach
Lake · Illinois
ℹ️ Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
Clinton Lake's Mascoutin beach sits on a 4,900-acre cooling lake with famously warm water, heated by the nearby nuclear station. The warm, calm lake extends the swim season on both ends. Sailors and anglers share the big water with beachgoers.
Good to know
| Water type | Lake |
|---|---|
| Water temperature | 80s in summer |
| Depth | warm lake swimming |
| Best season | June-August |
| Fees | State recreation area entrance fee |
| Reservations required | No |
| Parking | SRA lots |
| Amenities | swim beach, campground, nuclear plant lake |
| County | DeWitt County |
| Nearest town | Clinton |
| Safety notes | no lifeguard; boat traffic |
Map
Nearby swimming holes
Frequently asked questions
Does Clinton Lake, Mascoutin beach require reservations?
No reservations are required at Clinton Lake, Mascoutin beach based on current information — but verify before you go.
Is there a fee to visit Clinton Lake, Mascoutin beach?
Reported fee info: State recreation area entrance fee. Fees can change — confirm with the official link.
When is the best time to visit Clinton Lake, Mascoutin beach?
The best season is typically June-August.
⚠️ Verify before you go. Conditions, fees, reservations, and access can change — confirm details with the official link before visiting. Last verified: September 2026