Greenwich is a town in the southwestern part of Washington County, New York, United States. The town is located on the western border of the county. The population was 4,868 at the 2020 census. It is part of the Glens Falls Metropolitan Statistical Area. Greenwich features several homes that were a part of the Underground Railroad.

Washington County is a county in the U.S. state of New York. As of the 2020 census, the population was 61,302. The county seat is Fort Edward. The county was named for U.S. President George Washington. The county is part of the Capital District region of the state.