Western Illinois Valley Conference Membership 1975 - 2006 1975 1976 1977-84 1985-96 Calhoun Calhoun Calhoun Calhoun Carrollton Carrollton Carrollton Carrollton Jacksonville Routt Greenfield Greenfield Greenfield New Berlin Jacksonville Routt Jacksonville Routt Jacksonville Routt Triopia New Berlin Triopia Triopia Winchester Triopia Winchester Winchester   Winchester     1997-2003 2004 2005 2006 North Jacksonville ISD North Jacksonville ISD North Brown County North Brown County North Jacksonville Routt North Jacksonville Routt North Jacksonville ISD North Jacksonville ISD North Meredosia North Triopia North Jacksonville Routt North Jacksonville Routt North Triopia North Ursuline North Triopia North Triopia North Virginia North Virginia North Virginia North Virginia North Winchester North West Central North West Central North West Central South Calhoun South Calhoun South Calhoun South Bunker Hill South Carrollton South Carrollton South Carrollton South Calhoun South Greenfield South Greenfield South Greenfield South Carrollton South North Greene South North Greene South North Greene South Greenfield South Northwestern South Northwestern South Northwestern South North Greene South Pleasant Hill South Pleasant Hill South Pleasant Hill South Pleasant Hill