Gold River is a census-designated place (CDP) in Sacramento County, California. The population was 7,844 at the 2020 census, down from 7,912 at the 2010 census. Gold River is part of the Sacramento-Arden-Arcade-Roseville Metropolitan Statistical Area. With a median family income of $141,399 according to U.S. Census Bureau in 2021, Gold River is the highest-income place in Sacramento County.