Oxford is a residential town located in western New Haven County, Connecticut, United States. The town is part of the Naugatuck Valley Planning Region. The population was 12,706 at the 2020 Census. Oxford is the 26th-wealthiest town in the state by median household income. Distinct settled areas in the town include Oxford Center, Quaker Farms, and Riverside. Oxford belongs to the Bridgeport–Stamford–Norwalk Metropolitan Statistical Area, a subregion of the New York metropolitan area.