The Illinois Jaguar Club (IJC) was formed in the fall of 1999 by combining the two Chicago-area Jaguar Clubs: the Jaguar Association of Greater Chicago (JAGC, a JCNA affiliate) and the Northern Illinois Jaguar Driver's Club (NIJDC, an independent organization).

The goal of the IJC is to provide a JCNA-affiliated club that supports all types of Jaguar enthusiast, including concours enthusiasts, drivers, tinkerers, rebuilders, polishers, etc.

Currently the IJC has a roster of approximately 150 members from all over the Chicago area and the surrounding suburbs.

IJC members own, show, and drive a wide variety of Jaguar cars, encompassing everything from an SS-100 to brand-new XK-8's and X-Types