Red Devil is a census-designated place (CDP) in Bethel Census Area, Alaska, United States. The population was 23 at the 2010 census, down from 48 in 2000. Their post office was founded in 1957.

Bethel Census Area is a census area in the U.S. state of Alaska. As of the 2020 census, the population is 18,666, up from 17,013 in 2010. It is part of the unorganized borough and therefore has no borough seat. Its largest community is the city of Bethel, which is also the largest city in the unorganized borough.