Tent camping near Shelbyville, Illinois centers around Lake Shelbyville and the Kaskaskia River watershed, located in the east-central portion of the state approximately 200 miles south of Chicago. The camping area sits at an elevation of 600-700 feet above sea level with a humid continental climate that creates mild springs, hot summers, and cool falls. Winter camping isn't recommended due to below-freezing temperatures from December through February and seasonal closures at most facilities.
What to do
Fishing opportunities: The Kaskaskia River below Lake Shelbyville Dam offers productive fishing spots accessible from Spillway campground. One camper noted it has "small campground next to water to fish and bike trails" and is "great all year."
Water recreation: Rent canoes at Kaskaskia River Camp for paddling excursions on the river that flows from Lake Shelbyville. The camp provides drinking water, picnic tables, showers and toilet facilities for tent campers needing riverside access.
Hiking trails: Hidden Springs State Forest contains multiple hiking trails through hardwood forests with seasonal wildflower displays. Shady Grove Campground within the forest offers tent sites with basic amenities including drinking water and toilet facilities but no showers.
What campers like
Off-peak solitude: October camping at Spillway campground provides a quieter experience as "it was pretty empty" according to one reviewer who appreciated the peaceful atmosphere despite proximity to town.
Year-round accessibility: Unlike some seasonal campgrounds in the region, certain sites remain open throughout the year. One camper simply stated Spillway is "great all year" making it suitable for those seeking winter camping options.
Gate service: Despite strict hours at Sullivan Marina and Campgrounds Resort, staff are accommodating to late arrivals. One camper noted, "after 10 PM you have to call to get in the gates. They're very nice about it, though!"
What you should know
Campground locations: Tent camping options range from lake-adjacent sites to more wooded settings. Kaskaskia River Camp sits directly on the river downstream from Lake Shelbyville Dam while other sites are scattered around the lake's perimeter.
Facility variations: Clean facilities exist at Sullivan Marina, but amenities vary significantly between campgrounds. A camper reported the marina has "clean facilities" but advised: "try to arrive early" due to their strict entrance policies.
Year-round options: While most campgrounds operate seasonally, Spitler Woods State Natural Area remains accessible throughout winter months for hardier campers. One visitor called it their "favorite place to camp in Illinois" with "great sites" and "plenty to do."
Tips for camping with families
Activity planning: Families visiting Spillway can combine camping with river activities. The site offers both fishing and water recreation with "rental canoes and tubes" plus "a bait shop" making it convenient for families who don't want to transport equipment.
Arrival timing: Schedule arrival at Sullivan Marina before their closing time to avoid complications. A camper advised that while "they're very nice about it," late arrivals require calling the office to arrange gate access.
Site selection: Choose tent sites at Spillway that balance privacy with convenience. The campground contains approximately "20 overnight primitive campsites at $10 a night" alongside "a few cabins and trailers that are full time residents."
Tips from RVers
Hookup availability: RVers should note that Spillway offers "16 full hookup" sites alongside tent camping areas, making it suitable for mixed camping groups requiring different accommodation types.
Size restrictions: Most campgrounds near Shelbyville aren't suitable for larger RVs. Spillway isn't "big-rig-friendly" according to amenity listings, so campers with oversized vehicles should contact campgrounds directly before arrival.
Seasonal considerations: The area experiences significant seasonal variation with humid summers and cold winters. Fall camping provides moderate temperatures and fewer crowds, with one camper noting that camping at Spillway in October meant "it was pretty empty."
