Peru (pərōˈ) [key], city (1990 pop. 12,843), seat of Miami co., N Ind., on the Wabash River; inc. 1847. It is a trade, processing, and rail center for a fertile agricultural area. Among its products are furniture, plastic and metal items, stationery, machinery, processed foods, and electrical equipment. The International Circus Hall of Fame, with its museum and summer performances, commemorates the seven circuses that once wintered there. Peru is the birthplace of Cole Porter. Grissom Air Reserve Base is to the south.