South Marcum Campground
Sold out? Sites at South Marcum Campground open up when campers cancel.
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About South Marcum Campground
South Marcum Campground is a national park campground at Rend Lake in Franklin County, Illinois. Reservations are managed through Recreation.gov. Campsite Tonight watches Rend Lake around the clock and automatically adds an open site to your Recreation.gov cart the moment a cancellation appears — so you just check out.
South Marcum Campground is in very high demand — sites here routinely sell out well in advance. Cancellations are often the best way in, which is exactly what Campsite Tonight watches for.
The campground accommodates RVs and trailers up to 76 ft. Campers rate it 4.6/5 across 163 reviews.
Other campgrounds at Rend Lake include Dale Miller Youth, South Marcum Day Use, Spillway Group Area, North Marcum Day Use Area and Dam West Area (day-use).
Total reservations in March — 2023: 56 · 2024: 125 · 2025: 109
Location
Address
Benton, Illinois
Coordinates
38.0338, -88.9402
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open.
- •June sees 1,181 reservations - book early or set cancellation alerts.
Nearby Campgrounds
Dale Miller Youth
Rend Lake
South Marcum Day Use
Rend Lake
Spillway Group Area
Rend Lake
North Marcum Day Use Area
Rend Lake
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Dam West Area (day-use)
Rend Lake
South Sandusky Day Use
Rend Lake
Photos
South Marcum Campground FAQ
How far in advance should I book South Marcum Campground?
Very high demand - sites typically fill up immediately when the booking window opens. Plan to book the moment reservations open. Mark your calendar for when the booking window opens (typically 5-6 months ahead). Also set alerts - cancellations do happen.
What is the busiest time at South Marcum Campground?
June typically sees the highest reservation activity at South Marcum Campground. During peak times, 100% of reservations are made 2+ weeks in advance.
Are there campsites available at South Marcum Campground right now?
South Marcum Campground is currently fully booked for the next 14 days. However, cancellations happen frequently - download the Campsite Tonight app to get instant alerts when sites become available.
Where is South Marcum Campground located?
South Marcum Campground is located in Rend Lake, near Benton, Illinois.
Track Availability at South Marcum Campground
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