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County Information



Some of the cities, towns, and places in DeKalb County are Afton, Afton Center, Charter Grove, Clare, Clinton, Colvin Park, Cortland, DeKalb, East Paw Paw, Elva, Esmond, Fairdale, Five Points, Franklin, Franks, Genoa, Hinckley, Kingston, Kirkland, Lee, Malta, Maple Park, Mayfield, McGirr, Milan, New Lebanon, Paw Paw, Pierce, Rollo, Sandwich, Shabbona, Shabbona Grove, Somonauk, South Grove, Squaw Grove, Sycamore, Victor, Waterman, Wilkinson

DeKalb County  Image

DeKalb County is a county located in the U.S. state of Illinois. As of the 2020 United States Census, the population was 100,420. Its county seat is Sycamore.DeKalb County is part of the Chicago-Naperville-Elgin, IL-IN-WI Metropolitan Statistical Area.