You'll find that many free RV dump stations Iowa are in and around the Iowa City area. Crisscrossing this eastern Iowa city are major highways, such as Interstate 80 and Iowa State Highway 1.
Council Bluffs, which also sits on the Missouri River, mirrors the city of Omaha on the other side of the Nebraska border. You can find dump stations starting at 15 miles away to the north, south, and east of the city.
As the capital and largest city of Iowa, Des Moines is home to lots of stores, nightlife, and cool things to check out, such as the capitol building, Gray's Lake Park, and the Des Moines Art Center. Most of the Iowa RV dump stations closest to downtown Des Moines are located within campgrounds and parks (these dumping facilities are usually free for registered guests).
Sioux City is located right at the border with Nebraska on the Missouri River. Iowa dump facilities located in this area are all found outside of the city but are conveniently situated near major highways.
Mason City is a short 30-mile drive from the border with Minnesota. In the area, you'll find beautiful camping destinations, such as the Ventura Marsh Wildlife Management Area and the Lime Creek Nature Center and plenty of Iowa RV dump stations just outside Mason City.
This selection of motorhome dump stations Iowa gives you wide coverage of the state. No matter where you are within the borders of Iowa, you'll be able to find a waste dump station or two nearby by simply referencing this list. As you will notice, many of the free dump stations in Iowa are located at city water treatment plants and usually won't have other services available, such as those you would find in RV parks and campgrounds (propane, groceries, ice, etc.). That being said, these water treatment plants are usually close to restaurants, shopping, and other RVing necessities. Furthermore, most of the waste dump stations are close to major highways and roadways.