New Rochelle (rōshĕlˈ) [key], city (1990 pop. 67,625), Westchester co., SE N.Y., on Long Island Sound; settled by Huguenots 1688, inc. as a village 1858, as a city 1899. Although mainly a residential suburb of New York City, it has some light industry. The house where Thomas Paine lived has been preserved. Iona College and the College of New Rochelle are in the city.