Valparaiso (vălpərāˈzō) [key], city (1990 pop. 24,414), seat of Porter co., NW Ind.; inc. 1850. There is popcorn processing, tool and die making, and the manufacture of metal products, liquid fertilizer, storage tanks, ferrite powder, paving materials, firefighting equipment, magnets, electronics, food-processing equipment, and plastics. The city is the seat of Valparaiso Univ.