DE KALB, a city of De Kalb county, Illinois, U.S.A., in the N. part of the state, about 58 m. W. of Chicago. Pop. (1890) 2579; (1900) 5904 (1520 foreign-born); (1910) 8102. De Kalb is served by the Chicago Great Western, the Chicago & North-Western, and the Illinois, Iowa & Minnesota railways, and by interurban electric lines. It is the seat of the Northern Illinois state normal school (opened in 1899). The principal manufactures of De Kalb are woven and barbed wire, waggons and agricultural implements, pianos, shoes, gloves, and creamery packages. The city has important dairy interests also. De Kalb was first settled in 1832, was known as Buena Vista until 1840, was incorporated as a village in 1861, and in 1877 was organized under the general state law as a city.