Carbonado is a town in Pierce County, Washington, United States. Carbonado is located near the Carbon River in northern Pierce County, approximately 50 miles (80 km) southeast of Seattle. Carbonado is the last town before entering Mount Rainier National Park and is also a popular spot for jeeping. Carbonado served as an important coal mining community in the late nineteenth and early twentieth centuries, when the town operated the largest coal mine in Pierce County. The population was 610 at the 2010 census.