Jefferson County Extension Office
Welcome to University of Illinois Extension for Bond, Clinton, Jefferson, Marion, and Washington Counties. Using the vast resources of the U of I, Extension provides practical, research-based information to make a positive difference in people's lives. 

Contact Jefferson County Extension Office

4618 Broadway
Mount Vernon, Illinois  62864
Phone: 618-242-0780
Fax: 618-242-0781


Service Area

Services provided in:
  • Jefferson County, Illinois

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