Campgrounds and RV parks near Merrill, IA

Merrill sits in Plymouth County in northwest Iowa, a short drive north of Sioux City and within easy reach of camping options on both sides of the Missouri River. The surrounding area mixes Loess Hills terrain, river bluffs, and open farmland, giving RV travelers a range of state parks, private resorts, and roadside campgrounds within a modest radius. The closest developed public option is Stone State Park on the edge of Sioux City, followed by full-service private grounds such as Sioux City North KOA Holiday and smaller local sites like Park Jeff Campground and The lazy H campground. For a larger destination trip, Ponca State Park sits in the Missouri River bluffs in northeastern Nebraska and serves as the eastern gateway to the 59-mile Missouri National Recreational River, about an hour from Merrill. Most visitors use Merrill as a quiet base for exploring the Big Sioux and Missouri River corridors, with grocery, fuel, and dump-station access available in the Sioux City metro just to the south.

Reservation systems vary by campground type. Iowa state parks, including Stone State Park, are booked through the Iowa DNR reservation portal at iowastateparks.reserveamerica.com or by calling 1-877-427-2757. Standard campsites can be reserved up to three months in advance, and from November 1 through March 31 all campsites are walk-in only, with limited exceptions. Nebraska state parks use a separate system. Reservations at Ponca State Park are made online through nebraskastateparks.reserveamerica.com or by phone at 1-844-637-2757. Camping reservations in the electrical sites at Oak Bluff campground are available up to 180 days in advance of arrival, while Turkey Ridge Electric Plus sites and basic sites are first-come, first-served. Private grounds such as Sioux City North KOA Holiday, Park Jeff Campground, and The lazy H campground take direct bookings through their own websites or by phone.