Lake Roesiger is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 611 at the 2020 census, up from 503 at the 2010 census.

Based on per capita income, one of the more reliable measures of affluence, Lake Roesiger ranks 98th of 522 areas in the state of Washington to be ranked.

Geography

Lake Roesiger is located at (47.981018, -121.919839).

According to the United States Census Bureau, the CDP has a total area of , of which, of it is land and of it (5.25%) is water.

Demographics

As of the census