Home > Regional > North America > United States > Illinois > Counties > Jefferson
Named after Thomas Jefferson, third President of the United States (1801-1809) and author of the Declaration of Independence. Established: March 26, 1819 County Seat: Mount Vernon
http://www.rootsweb.ancestry.com/~iljeffer/
Online resource for Jefferson County family historians.
http://www.communitydevelopment.uiuc.edu/census/search1.cgi?icounty=Jefferson
Data from the US Department of Congress, Bureau of the Census.
https://www.facebook.com/Jefferson-County-IL-Democrats-104231256281982/
News and information about Democratic candidates, elected officials and events for the county, its townships and Illinois.
Home > Regional > North America > United States > Illinois > Counties > Jefferson
Thanks to DMOZ, which built a great web directory for nearly two decades and freely shared it with the web. About us