Please check the time period your
ancestors were in DeKalb County, as the present area, or parts of it, were formerly included in the Counties below
(links to these Counties are provided:
1837–1839: Orange—Name later changed to Sycamore.
Cities and Towns
of DeKalb County
County Seat: Sycamore
Afton Center, Charter Grove, Clare,
Colvin Park, Cortland, DeKalb, East Paw Paw, Edgebrook Mobile Home Park,Elva, Esmond, Evergreen Village Mobile
Home Park (subdivision), Fairdale, Five Points, Franks, Genoa, Hinckley, Kingston, Kirkland, Malta, McGirr, New
Lebanon, Rollo, Sandwich, Shabbona, Shabbona Grove, Somonauk, Sycamore, Waterman, Wilkinson
Afton - Formed from DeKalb and Clinton
on February 18, 1856.
Cortland - First named Richland, then changed to Pampas on November 20, 1850 and to Cortland on February 1, 1865.
DeKalb - Name changed from Orange on November 20, 1850.
Malta - Formed as Etna from DeKalb in September, 1856; name changed from Etna in December, 1858.
Mayfield - Name changed from Liberty on November 20, 1850.
Milan - Formed from Shabbona and Malta on February 23, 1858.
Paw Paw - Formed in March, 1850.
Pierce - Formed from Squaw Grove and Pampas (Cortland) before 1853.
Sandwich - Formed from Somonauk on July 14, 1896.
South Grove - Name changed from Vernon on November 20, 1850.
Victor - Formed from Clinton about 1853
Welcome to DeKalb County Illinois Trails History
Illinois Trails is a not-for-profit group whose goal is to put as much history and genealogical information online
for the free use of all researchers.
This County is currently unhosted, however, we
will work to place new and useful data online. If you would like to help, you can contribute data by emailing Sue.
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DeKalb County was formed March 4, 1837 from part of Kane County
Named for Johann DeKalb,
a German baron, who served in the Colonies during the Revolution, and was mortally wounded at Camden, South Carolina
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