Des Plaines (city, United States)
Des Plaines (dĕs plānz), city (1990 pop. 53,223), Cook co., NE Ill., a suburb of Chicago on the Des Plaines River; inc. 1925. Among its manufactures are chemicals and electronic equipment. It was founded in the 1830s as the town of Rand; the name was changed in 1869, and Riverview was annexed in 1925. O'Hare International Airport is to the south.