Reserve is a census-designated place (CDP) in the Town of Couderay, Sawyer County, Wisconsin, United States.

As of the census[2] of 2000, there were 436 people, 160 households, and 103 families residing in the CDP.

The racial makeup of the CDP was 17.66% White, 82.11% Native American, and 0.23% from two or more races.

There were 160 households, out of which 31.9% had children under the age of 18 living with them, 34.4% were married couples living together, 18.8% had a female householder with no husband present, and 35.6% were non-families.

33.1% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older.