Delavan Lake is a census-designated place (CDP) in the towns of Delavan and Walworth, Walworth County, Wisconsin, United States.

[6] As of the census[3] of 2000, there were 2,352 people, 944 households, and 623 families residing in the CDP.

The racial makeup of the CDP was 92.98% White, 0.34% African American, 0.17% Native American, 0.43% Asian, 0.04% Pacific Islander, 4.80% from other races, and 1.23% from two or more races.

There were 944 households, out of which 28.6% had children under the age of 18 living with them, 54.1% were married couples living together, 7.6% had a female householder with no husband present, and 34.0% were non-families.

27.0% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.