Salisbury is a town situated in Litchfield County, Connecticut, United States. The town is the northwesternmost in the state of Connecticut; the Massachusetts-New York-Connecticut tri-state marker is located at the northwest corner of the town. The population was 4,194 at the 2020 census. The town is part of the Northwest Hills Planning Region.

Litchfield County is in northwestern Connecticut, United States. As of the 2020 census, the population was 185,186. The county was named after Lichfield, in England. Litchfield County has the lowest population density of any county in Connecticut and is the state's largest county by area.