a city of Trumbull county, Ohio, U.S.A., on the Mahoning river, at the mouth of the Meander and Mosquito creeks, about 55 M. E.S.E. of Cleveland. Pop. (1890) 4289; (1900) 7468, of whom 2104 were foreign-born. It is served by the Baltimore & Ohio, the Erie and the Pennsylvania railways, and by an interurban electric system. Coal and iron-ore are abundant in the vicinity, and the city's principal manufactures are sheet steel, sheet iron, tin, metal lath, boilers and railway cars. The municipality owns and operates its waterworks and electriclighting plant. Niles was settled in 1832, laid out in 1834, incorporated as a village in 1865 and chartered as a city in 1895. It was named (1834) in honour of Hezekiah Niles (1777-1839), the founder and editor of the weekly Niles's Register (1811-1849).