Lake trip · Clinton County, Illinois
Where to stay at Carlyle Lake
Carlyle Lake covers 24,580 acres in Clinton County and carries a water-quality grade of F (Algae-prone). Compare cabins, resorts, and vacation rentals below. The grade measures nutrients and algae — it is not a stay-or-skip rating. Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
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Places to stay near Carlyle Lake
Cabins, resorts, hotels, and vacation rentals near Carlyle Lake in Clinton County, Illinois — live availability and prices. Add your dates to see totals.
Top-rated places to stay near Carlyle Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
About the water
Carlyle Lake grades F for nutrients and algae — Algae-prone. Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Water clarity is about 1.8 ft of visibility. Algae (chlorophyll-a) measures 38.8 µg/L. The letter is not a reason to skip cabins and rentals around the lake.
Best time to visit
Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
Check the National Weather Service forecast for Carlyle Lake →
About Carlyle Lake
Fishing & license
Illinois fishing license
Anglers under 16 years of age (resident and non-resident) may fish without a license. Blind or disabled Illinois residents (with proof such as a state disabled person ID card) and Illinois residents on leave from active duty in the Armed Forces are also exempt. Seniors 65-74 qualify for a reduced-fee Senior Fishing License ($7.75), and residents 75+ qualify for the Super Senior Fishing License ($1.50). · Fishing is open year-round in Illinois; licenses run on a license year that goes on sale March 1 and expires March 31 of the following year (2026 licenses valid through March 31, 2027). Designated stocked trout waters are the exception: the 2026 spring trout season opened April 4 (catch-and-release from March 21) and a fall trout season begins in October.
Prices as published by Illinois Department of Natural Resources, 2026.
Camping & RV near Carlyle Lake
Search public campgrounds and RV sites near Carlyle Lake on Recreation.gov, then compare cabins, resorts, and rentals on the map above.
Common questions
Frequently Asked Questions
Cabins, resorts, and vacation rentals around Carlyle Lake in Clinton County, Illinois are on the map above with live availability and nightly prices. Waterfront rentals put you on the dock; lodging in the nearest town is usually cheaper with more choice.
Carlyle Lake has a water quality grade of F (Algae-prone). Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Always check local health-department advisories before swimming.
Late spring through early fall, with June through August the peak season for swimming, boating, and fishing.
Explore Carlyle Lake
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Species activity outlook by water temperature and season
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Very high nutrients, dense algae, poor clarity
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LakeQuality Lake Trip Planner (2026)
Free trip-planning guide for Carlyle Lake: how to pick a clean lake, the water-quality signals that matter, best swimming and fishing windows, and where to stay.
Lodging availability and prices are provided by Stay22 and its booking partners (Booking.com, Vrbo, Expedia); LakeQuality may earn a commission from bookings at no extra cost to you. Water-quality grades are independent of lodging listings. Always check current health-department advisories and managing-agency conditions before you travel.