Marion County Park Knoxville, Iowa (641) 828-2214 ProfileMarion County Park. RV Park and Campground in Knoxville, Iowa Photos RV Campground HQ Default Reviews Map Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Enter your locationGet Directions Travel modeDrivingWalkingBicyclingPublic Transport Distance unitsMilesKilometers Get Directions