Mendota County Park
Nice overnight
Stayed one night. Very nice campground on the edge of Lake Mendota. Playground for kids, tables near the lake. Nice weather, too, made for a great stay.
111 campgrounds · Check availability for any dates.
The Rock Cut State Park campground sits 30 miles south of Janesville, Wisconsin, while Milton KOA and Blackhawk Camping Resort are located within 10 miles of the city. These campgrounds offer various accommodation types including tent sites, RV hookups, and cabin rentals. Several family-oriented campgrounds like Hickory Hills and Lakeland Camping Resort feature amenities such as swimming pools, playgrounds, and access to lakes for fishing and boating activities. Mixed-use campgrounds supporting both tent and RV camping dominate the region.
Many campgrounds in the Janesville area operate seasonally, typically from April through October, with a few remaining open year-round. Reservations are highly recommended during summer months when facilities reach capacity. "Unless you knew of Hickory Hills Campground, you wouldn't happen across this site by luck or accident," noted one visitor about finding less-visible camping locations in the area. Road conditions are generally good, with most developed campgrounds accessible via paved roads. Weather conditions vary significantly between seasons, with humid summers and cold winters affecting camping comfort. Most campgrounds provide electric hookups, drinking water, and toilet facilities, though amenities vary widely between locations.
Campers frequently mention lake access as a primary attraction at several campgrounds. At Blackhawk Camping Resort, Clear Lake provides opportunities for fishing, kayaking, and boating, though swimming may be restricted in certain areas. Several visitors observed that campgrounds with lake views tend to fill first during peak season. While some campgrounds offer secluded, wooded sites providing privacy, others feature more open layouts with minimal separation between camping spots. A reviewer commented that "the campground was filled with plenty of people in the first camping loop" when describing site density at one location. Proximity to hiking trails, such as those at nearby state parks, adds recreational value to the camping experience in the region. Road noise can be an issue at campgrounds located near highways, with reviewers often noting this in their feedback about specific developed campgrounds.
"No enclosed dog park but plenty of area to walk your dog!"
"Driving around, I really don't think there's a bad spot here. The staff is fantastic, friendly, and accommodating- as are the seasonal campers.
We'll be back again...and again... and again!"
"The hiking/biking trails are many miles long. The fishing near t he dam is great and you can always find a spot near the edge of the lake. Bring bug spray."
"Rock cut is only about a 50 minute drive from the far burbs of Chicago. It’s situated a few miles outside of Rockford so if you’re into exploring old industrial river towns, this is a nice one."
from $12 - $50 / night
Check Availability"Our site was nicely wooded and a decent size, but everyone was pretty close to each other. When we were there, the women's shower was freezing and the men's was almost uncomfortably hot."
"Hidden from site, the entire grounds are completely surrounded by a very thick wall of tall trees that barricades this place from most of civilization."
from $42 / night
Check Availability"Set along Lake Koshkonong this place was bursting with energy and feels more like a summer resort than a traditional campground with over 270 full-hookup sites and cozy cabins for families who don’t have"
"We came to this area to do some genealogical work and needed to be situated between Madison and Beloit. Good location for that."
"Being right in front of the jumping pillow people didn’t walk around. They would cut thru our site."
"We made this trip mid-May during the Covid social distancing. The camp ground was on point with their preparedness. Check in was simply pull into your site or a brief stop at registration."
"Just a quick 2 hour drive from our home in Chicago, with large wooded sites for privacy. Clean bathrooms."
"We didn’t have much time to explore the campground but we did have a nice walk around the outer loop of sites. This is near the main highway and a nice place to camp."
from $18 - $50 / night
Check Availability"There are very tall trees around the entire campground giving you some respite from the sun and the heat. The bath house is easily within walking distance from anywhere in the campground. "
"Last time we camped in site 65, next to the path to the playground & walk-in site parking which was busy."
"Right off i90, and next to fuel and food stops. Family run campground with 40 sites that have water and electric. They are cash or check only, with no online booking. Sites are snug."












Stayed one night. Very nice campground on the edge of Lake Mendota. Playground for kids, tables near the lake. Nice weather, too, made for a great stay.
Wonderful family spirt. Great clean showers and bathroom. Pool. Large campstore with lots of amenities.
This is a small campground. Sites are a little overgrown and not very level. No hook ups. No dump station, but quiet and a good overnight stop
It’s a lot bigger than I expected it to be. Our site is great the bathrooms are well maintained. There’s plenty of things to do here. Getting wood is great and easy the only downside is paying $8 a bundle. Otherwise great campgrounds. Would definitely come back.
We camped on Site 9, which is at the front of the park near the entrance. The site was mostly level, with electric only hookups. If I had been here before I would have chosen a site tucked back farther to avoid some of the highway noise, but overall it was a good experience. We hiked a mile or two through the park, the bathhouse we used while on a walk was well supplied and clean with bathroom and shower combined, all unisex. We would stay here again if in the area.
Staff is friendly and attentive. Well maintained sites. Definitely family friendly. Lots of kids. Nice pool and clubhouse. We will come back.
The sites are very wooded and shaded, making them incredibly private. Clean showers
Very nice site. Close to Madison and attractions / restraunts. The bathrooms and showers are clean and convenient and they have a double dump site and a potable water fill site. The camp sites are flat with gravel parking and electrical hookups. Multiple new trees recently planted.
Stayed in Sunrise campground. Minimal amenities available. Most sites seem geared towards tents and small units. Sunfall camp ground especially so.
Campgrounds within a 30-mile radius of Janesville, Wisconsin offer diverse experiences for outdoor enthusiasts. The region sits at approximately 800 feet above sea level with rolling terrain characterized by glacial features. Summer temperatures typically range from 65-85°F, while spring and fall can see overnight lows dropping into the 40s, affecting camping comfort and preparation needs.
Paddling on clear waters: Rock Cut State Park features a sizeable lake perfect for kayaking. "Great boating. Beautiful nature. Not something you would expect near Rockford," notes Melissa B. The lake provides a welcome escape with multiple water-based recreation options.
River tubing excursions: At Crazy Horse Campground, the Sugar River offers excellent floating opportunities. "They provide at no charge kayaks and a shuttle to a drop-off point which you can kayak back down to the campground which takes about an hour and a half," explains David H., who appreciates the well-spaced shuttles that prevent overcrowding on the river.
Bird watching sessions: Lake Kegonsa State Park provides habitat for numerous bird species. "Got bird watching on your mind? Well, you're in luck, because here at Rock Cut SP you can spot an amazing array of foul including bald eagles, American robins, northern cardinals, barn owls, mourning doves," lists Stuart K., highlighting the diverse avian population in the area.
Waterfront access: Pettit's Lakeview Campground & Bar offers extensive shoreline. "While this isn't the most amazing RV parking lot you'll come across, it does have some of the absolute most amazing waterfront real estate with 850 feet of sweeping views of nearby Rock River (to the west) and Lake Koshkonong (to the east)," Stuart K. observes about this lakeside destination.
Spacious campsites: Several campgrounds offer well-sized sites. At Sugar River Forest Preserve, "The sites are large and well maintained, the hosts were great, and it is less than two hours from home!" Ron L. comments on the generous campsite dimensions that provide adequate space for setup.
Clean facilities: Bathhouses and amenities receive consistent maintenance at many locations. "The bathroom house is easily within walking distance from anywhere in the campground," Christopher R. notes about Sugar River Forest Preserve, adding that the "bath house is pretty basic but clean."
Seasonal operation: Most campsites near Janesville have limited seasons, typically mid-April through October. "We visited in Early June this time, and this time had a campsite on the East side under the very, very tall pine trees," Brian O. mentions about Sugar River Forest Preserve, highlighting the timing of their visit.
Flooding concerns: Some campgrounds experience periodic flooding. At Blackhawk Camping Resort, Marc W. notes the conditions can vary: "We reserved a water/electric site and utilized the dump station on our way out. Lines were not too bad for the dump station which was good. Sites were of decent size and fairly quiet."
Reservation requirements: Advanced booking is essential, especially for waterfront sites. "They get very busy on weekends and holidays you have to book in advance," Marc W. advises about Crazy Horse Campground, indicating the high demand during peak times.
Themed activities: Yogi Bear's Jellystone Park offers structured entertainment for children. "My husband and I plus our 3 kids stayed in a rustic cabin. The cabin was exactly how it was described and thankfully so! Since it had air-conditioning we all slept great," reports Tricia E., who appreciated the amenities after active days.
Playground access: Multiple facilities feature designated play areas. "They have a nice playground and four sand volleyball courts. Staying in the campground allows for easy lake access," Josh F. observes about Pettit's Lakeview Campground, noting the recreational options beyond swimming.
Swimming options: Look for campgrounds with beaches or pools. "There's 2 key areas here, and both have a combination of RV'ers that have parked their mobile for a long time, while there's a number of open sites that you can book on a daily or weekly basis," Stuart K. reports about Blackhawk Camping Resort, which features water access and swimming areas.
Site selection strategy: Choose locations based on specific needs. "Sites also come in either grass or gravel, so be sure to ask when booking," Stuart K. advises about Blackhawk Camping Resort, emphasizing the importance of understanding surface types when selecting an RV site.
Hookup variations: Electric and water availability differs between campgrounds. "We were in sites#13 and couldn't be happier with our choice. I had done a drive through before reserving the site on the state camping website so I knew which ones would work for us," Lisa S. explains about her methodical approach to site selection at Lake Kegonsa State Park.
Size restrictions: Not all campgrounds accommodate larger RVs. "The campground is huge, over 400 seasonal sites. For weekend camping, I would only recommend if you want to bring a pontoon and party on the lake," Kim L. notes about Lakeland Camping Resort, highlighting both the size and primary purpose of the facility.
Frequently Asked Questions
Which is the most popular campground near Janesville, WI?
According to TheDyrt.com, the most popular campground near Janesville, WI is Milton-Madison SE KOA with a 4.5-star rating from 20 reviews.
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