National Historic Register properties in De Kalb county/parish, Illinois

• Egyptian Theatre (De Kalb)
• Ellwood Mansion (De Kalb)
• Glidden, Joseph F., House (De Kalb)
• Gurler, George H., House (De Kalb)
• Haish Memorial Library (De Kalb)
• Nisbet Homestead Farm (Earlville)
• Rollo Congregational United Church of Christ (Earlville)
• Ashelford Hall (Esmond)
• Sandwich City Hall (Sandwich)
• von KleinSmid Mansion (Sandwich)
• Shabbona Hotel (Shabbona)
• Brower, Adolphus W., House (Sycamore)
• Chicago and Northwestern Depot (Sycamore)
• Elmwood Cemetery Gates (Sycamore)
• Marsh, William W., House (Sycamore)
• North Grove School (Sycamore)
• Sycamore Historic District (Sycamore)