Camping around Grinnell, Iowa offers options ranging from basic tent camping to full-hookup RV sites within a 20-mile radius of town. Located in east-central Iowa at approximately 948 feet above sea level, the area features a humid continental climate with warm summers and cold winters. Most campgrounds in this prairie region remain open from April through October, with a few year-round options for travelers seeking camping experiences during colder months.
What to do
Fishing at local lakes: Diamond Lake County Park provides several prime fishing spots around the 98-acre lake. "Very nice camping place very laid back and good people around, decent sized lake for fishing," notes one camper. The lake is stocked with bluegill and crappie, making it ideal for casual anglers.
Biking on paved trails: Rock Creek State Park Campground connects to a bike trail that leads directly into Grinnell. "Nice and quiet even on race weekend," mentions one visitor. The paved trail runs approximately 5 miles from the campground to town, offering an alternative to driving.
Farm and food experiences: Several local attractions showcase the area's agricultural heritage. Near Kellogg RV Park, campers can explore "a cool antique farm tractor and old gas station across the street to look at." For food enthusiasts, "head on over to nearby Maytag Blue Cheese for a slice or slab or head on over to Dayton Meat Products," which offers unique regional meats and sausages.
What campers like
Storm shelters for safety: Severe weather preparedness is a serious consideration in Iowa camping. "Bonus points to Kellogg RV Park for having an F5-rated tornado shelter located on-site, so while your RV might blow away, no worries, you and those you hold most precious will be protected in the event of a tornado."
Serene lakefront views: The newer RV section at Diamond Lake County Park features water-adjacent sites. "Beautiful electrical sites right on the lake," reports one visitor, while another notes the "serene view of Lake Diamond" and mentions "cell phone service is great for cricket and Verizon."
Space between sites: At Howell Station, campers appreciate the roomier setup compared to other campgrounds. "Sites were spacious, level and most were very shady," writes one reviewer. Another mentions, "We have plenty of space for our dogs on two stakes. Each site has a fire ring and picnic table."
What you should know
Seasonal openings vary: While some RV parks near Grinnell operate year-round, most have limited seasons. At Amana RV Park & Event Center, the camping season runs "Apr 1 - Oct 31," requiring off-season planning for travelers. A visitor notes, "The 'office' is a little gas station, hamburger cafe with a very efficient and friendly check-in person."
Lake water quality varies: Diamond Lake features darker water that may not appeal to swimmers. One camper observes, "The only downside is that the lake water was very murky. I would not want to swim there." Another reviewer calls it "a great place for a nightover" despite this limitation.
Limited privacy at some sites: At Rock Creek State Park Campground, be prepared for close quarters in certain areas. "RV sites are close and busy," notes one camper, while another states "the sites both tent and RV are simply too close for you to enjoy the place. Camp fires every 10 feet."
Tips for camping with families
Playground access: Griffs Valley View RV Park offers "a small playground" among its amenities. Another camper mentions the "large community center, gym, and laundry facilities on site," making it suitable for longer family stays.
Swimming alternatives: With limited swimming options at some lakes, consider RV sites near Grinnell, Iowa that offer pool facilities. "They have a swimming pool and a fishing pond," reports a visitor to Adventureland Campground, which provides a good alternative for families wanting water recreation.
Wildlife viewing opportunities: Diamond Lake County Park offers excellent bird watching. "Great spot for birds—saw multiple heron, egret and hawks," writes one camper. This provides educational opportunities for children interested in nature without requiring structured activities.
Tips from RVers
Site selection strategy: When staying at Adventureland Campground, experienced RVers recommend specific locations. "Pull through paved 50 amp sites, with water and sewage. Picnic table for use," notes one camper. The concrete pads make leveling easier, with another visitor mentioning "concrete slabs, so it was easy to back in and set-up."
Utility hookup planning: At Griffs Valley View RV Park, utilities are well-positioned for most rigs. The campground offers "spacious concrete pads, both 30/50 amp and full water/sewage hookups," making it suitable for extended stays. One camper mentions staying "at Griffs for two months in autumn while working in Altoona."
Weather preparation: Iowa's climate requires proper planning. Howell Station campers appreciate staff preparedness: "The night we stayed, there was a severe weather threat, and the staff, at the end of the night, had unlocked the storm shelters should the need arise."