Warm Beach is a census-designated place (CDP) in Snohomish County, Washington. The population was 2,437 at the 2010 census.
Based on per capita income, one of the more reliable measures of affluence, Warm Beach ranks 66th of 522 areas in the state of Washington to be ranked.
Warm Beach is home to the Warm Beach Christian Camps and Conference Center, which hosts the annual Lights of Christmas festival every December.