Brewster is a village and the principal settlement within the town of Southeast in Putnam County, New York. Brewster’s population was 2,508 at the 2020 census. The village, which is the most densely populated portion of the county, was named for two early farmer landowners, Walter and James Brewster, who donated land for the Brewster railroad station in 1848.

Putnam County is a county located in the U.S. state of New York. As of the 2020 census, the population was 97,668. The county seat is Carmel, located within one of six towns comprising the county. The county is part of the Hudson Valley region of the state.