As the capitol of Idaho, Boise is the largest city in the state. The RV parks, campgrounds and other amenities available are more numerous in the Boise and Caldwell area, so it's a convenient stop along I-84 when you need to find an RV dump station.
In the far north of Idaho, the largest city is Coeur d'Alene, and it's a popular vacation spot because of the numerous lakes and ski resorts nearby. Travelers passing through on I-90 headed to Missoula to the east or Spokane to the west can stop at an Idaho dump station or find a good campground to spend a weekend.
On the east side of the state on I-15, Idaho Falls is only about an hour away from Yellowstone National Park and another hour north of Pocatello. Being in such a strategic position, it serves as a base for tourists and campers, which is why the city is home to many of the free RV dump stations in Idaho.
Twin Falls is another city where it's easy to find RV dump stations in Idaho. Located in the south-central region of the state on I-84, the city is at a crossroads from which travelers can go east to Pocatello, west to Boise or north to Sawtooth National Forest. This location makes it a good place to camp and use as a touring base, so there are close to a dozen RV parks nearby.
That covers the 25 top dumping stations you can find in Idaho. In a state that's full of outdoor adventures at lakes, ski resorts and national forests, it's no accident that there's an assortment of RV campgrounds that offer dumping services to guests and visitors. While a few of the places on our list limit their dumping services to paying guests, we added them because their location makes a good overnight or weekend stop if you're traveling across the state.