24/7 Biohazard and Crime Scene Cleanup in Lake Holiday, IL

Lake Holiday is a census-designated place in Northville Township, LaSalle County, built around the man-made lake of the same name.

The community was created in the mid-1960s as a lake resort community, when Somonauk Creek was dammed in 1965 to form Lake Holiday on its way south to the Fox River; the community's property owners association dates to July 2, 1965.

Lake Holiday's population was 5,687 at the 2020 census, up sharply from 4,761 in 2010, with 2,229 households and 1,572 families counted in the CDP.

The CDP covers about 3.99 square miles, of which roughly 0.48 square miles is the water of the lake itself.

Lake Holiday is a private, unincorporated community, so services are split by shoreline: homes on the western banks are served by the Somonauk Fire Department and Somonauk School District, while the eastern banks are covered by Sandwich municipal services and Sandwich CUSD 430.

Because Lake Holiday sits south of the LaSalle–DeKalb county line, neither Sandwich nor Somonauk police have jurisdiction there; the community is patrolled by its own security and by the LaSalle County Sheriff's Department, which keeps a substation nearby in the Northville Township Building.

The CDP also takes in the neighboring Wildwood community, which sits east of County Highway 3.

What began as a weekend and vacation retreat has steadily converted into a year-round residential community, gaining nearly a thousand residents between the 2010 and 2020 censuses.