Travelers are voting Rest A While Rv Park, Potlatch State Park Campground and Belfair State Park Campground as the best of 8 campgrounds near Union. There are 10 campgrounds near Tacoma a city just 30 km from Union and 8 campgrounds near Vashon Island which is 31 km distant. The most popular of these are Manchester State Park Campground near Tacoma and Illahee State Park Campground in Vashon Island. You can find 238 campgrounds in Washington and 6217 campgrounds in the country of United States. Our members favorite in Washington is Manchester State Park Campground and Logging Creek Campground is the top pick in United States. Want more? Check out our map of campgrounds near Union.