WESTERLY, a town of Rhode Island, U.S.A., separated from Connecticut by the Pawcatuck river. Pop. (1920) 9,952 (26% foreign-born white) ; 1930 Federal census 10,997. It em braces the villages of Westerly and Bradford, and Watch Hill, a seaside resort with a summer population of 5,000. Westerly was settled in 1661 and the town was organized in 1669.