Channel Lake is an unincorporated community and census-designated place (CDP) in Antioch Township, Lake County, Illinois, United States.

[4] As of the census[9] of 2000, there were 1,785 people, 696 households, and 473 families residing in the CDP.

There were 855 housing units at an average density of 438.8 per square mile (169.4/km2).

There were 696 households, out of which 32.5% had children under the age of 18 living with them, 52.4% were married couples living together, 8.9% had a female householder with no husband present, and 31.9% were non-families.

24.4% of all households were made up of individuals, and 7.0% had someone living alone who was 65 years of age or older.