Camping options near Millersville, Maryland cluster along major transportation corridors, with sites situated within 15-30 miles of downtown Washington DC. The region features relatively flat terrain with elevations ranging from 100-300 feet above sea level, creating accessible campsites with minimal hiking challenges. Summer camping often involves dealing with high humidity, while spring campers contend with more frequent rainfall averaging 3-4 inches per month.
What to do
Hiking along the Patapsco River: Patapsco Valley State Park offers miles of riverside trails with varying difficulty levels. A visitor noted, "There are a lot of easy, but beautiful hikes. The trails we have been on are all pretty moderate to hard but offer beautiful waterfalls and river views," and mentioned that "the American Discovery Trail (ADT) passes through the park."
Swimming in natural settings: Several campgrounds feature water access beyond traditional pools. At Patapsco Valley State Park-Hilton Area, campers discovered "a small river and swimming hole at the bottom of the hill off to the side opposite the cabins/park." Another reviewer at Hollofield Area Campground mentioned, "Took a fairly easy hike down to the river and even went for a swim."
Metro access to Washington DC: For urban exploration, Greenbelt Park Campground provides convenient transportation options. A camper advised: "Take the METRO if you are going into the District. There are two stations very close to camp (Greenbelt and University Park)... I spent about $10 per day on METRO versus $20-$40 on parking in the district area."
Urban camping with wildlife viewing: Despite proximity to cities, campgrounds offer wildlife encounters. At Greenbelt Park, a camper observed the "quiet nature of the campground, the overall feeling of the outdoor space (every morning birds and squirrels)," while another mentioned seeing "a family of deer grazing close by" at the Washington DC Capitol KOA.
What campers like
Private wooded sites: Many campers appreciate secluded spots within the urban-adjacent parks. At Hollofield Area Campground, visitors noted "nice wooded sites set far apart from each other in two concentric circles," and that "when you are at your campsite, you really are in the middle of the woods."
Kid-friendly amenities: Family-oriented features rank high among camper priorities. At Washington DC / Capitol KOA, guests highlight "a nice area for kids (pool, playground, jumping pillow, basketball courts, giant chess, etc)." Another camper praised Cherry Hill Park's attractions: "Mini golf, two pools, arcade, 24 hour laundry, a store and office open early!! And late!!! Paved roads for scootering."
Clean facilities: Well-maintained bathrooms matter to campers, with one Cherry Hill Park visitor noting, "Everything was extremely clean and well maintained. We loved the brick patio with patio furniture." At Greenbelt Campground, a camper simply stated, "Clean place and very quiet."
Affordability compared to hotels: Budget-conscious travelers appreciate camping economics when visiting DC. One camper at Hollofield Area noted it's "convenient and inexpensive to stay here... If you camp and want to visit the city, this is a budget conscious way to do so."
What you should know
Site privacy varies significantly: Campground layouts differ greatly in spacing and seclusion. At Cherry Hill Park, a camper observed, "I wish there was a little bit more room in between the campers for privacy but it did not hurt our stay," while another noted, "The landscaping, trees and site placement does help the esthetics."
Reservation requirements: Most popular campgrounds require advance booking, especially during peak seasons. A Greenbelt Park camper advised, "Reserve online - this is a NO CASH facility which means you CANNOT pay upon arrival so you will have to do so online."
Site-specific restrictions: Rules vary between campgrounds and specific sites. At Greenbelt Park, campers noted, "No hanging things from trees. Even if you love a hammock you cannot hang them at this park on the trees."
Noise considerations: Despite wooded settings, some campgrounds experience noise issues. One Greenbelt Park camper mentioned "occasional air traffic noise," while at Adventure Bound Washington DC, a visitor noted "nearby road was very busy with a lot of traffic noise especially early in the morning."
Weather impacts: Seasonal conditions affect the camping experience. A camper at Hollofield Area Campground warned, "When it rains it really flushes through the grounds. Our site was hard to set up as we arrived during a storm and it was very wet even after the rain died down."
Tips for camping with families
Playgrounds and recreation: Patapsco Valley State Park offers exceptional kid-friendly features. A camper noted, "This is a small gem of a state park campground... It seem like this area is, possibly unintentionally, geared toward children. There is a massive playground, nature play space, sensory trail, and a small nature center."
Educational opportunities: Natural learning experiences abound at Patapsco Valley, where a visitor highlighted the "sensory trail and nature discovery center at the entrance to the park," adding, "the kids still enjoyed the sensory trail and playground. It's the perfect little getaway from the city for camping, fishing and hiking."
Cabin options: For families not ready for tent camping, alternatives exist. At Patapsco Valley State Park, a camper mentioned "neat mini cabins. Small one room cabins that have electricity and heat. They are a nice touch for those that want to camp, but not completely 'rough it.'"
Site selection for privacy: Choosing the right site impacts family enjoyment. At Washington DC Capitol KOA, a camper advised, "If you get an area to back into it'll be more secluded, but the pull through spots offer no privacy."
Tips from RVers
Electric hookup locations: Power availability varies by campground section. At Hollofield Area Campground, "There is only 20/30amp electricity and NO water or sewer- although there was a dump and a place to fill your water tank." The campground has "an inner loop with electric but no water or sewer. The outer loop is primitive."
Bridge height restrictions: Access limitations affect larger rigs. For Hollofield Area Campground, a reviewer warned, "APPROACH THIS PARK ONLY FROM THE WEST IF YOUR VEHICLE IS OVER 11 FEET HIGH. (There is a 11' bridge coming east bound into this park.)"
Unlevel sites: Terrain challenges require preparation. At Adventure Bound Washington DC, campers found "the site was part gravel and mostly mud/grass," while Cherry Hill Park users mentioned, "Sites were pretty level but did have some rocks in the area where my pad would be so I had to do a little clearing."
Dump station logistics: Water fill procedures vary between parks. At Greenbelt Park, an RVer noted, "The water fill was a little annoying in that there's a handle you have to hold down the whole time, but we used a rock to prop the handle down."
