Interstate State Park has some nice features, but overall it wasn’t my favorite. Many of the exterior loop sites have river access, which was a highlight, and we didn’t have to deal with mosquitoes thanks to being right on the water. The nearby towns are also very charming and worth exploring.
That said, the campground is small and very crowded, likely because it’s so close to the Cities and popular with canoe rentals. Expect a lot of traffic noise, and in the fall, migrating geese can be very loud (which didn’t bother me, but might for some). The ranger office had limited hours, and since firewood is locked up, there’s no self-serve option. Another downside: a riverboat cruises by frequently, blasting music in the evenings and giving tours during the day.
The sites are close together, with RVs and tents mixed on one loop, so generator noise is common. It wasn’t a terrible stay, but just too small and busy for my preference—I don’t think I’d return.
Best sites seemed to be 21 (great river views, less private), 23 (fun detached tent pad), and 18 (most private). Sites 4–5 were also lovely but close to the bathrooms and camp host, so expect more foot traffic.