Corn Bowl Conference

Former Members
Central Springs, 2007-08 thru 2014-15
Greene1940-41 thru 2003-04
Manly, 1941-42 thru 1958-59
Nashua, 1940-41 thru 1989-90
Nashua-Plainfield, 1990-91 thru 2014-15
Nora Springs1940-41 thru 2006-07
North Butler, 2004-05 thru 2014-15
North Central, 1959-60 thru 2006-07
Northwood-Kensett, 2002-03 thru 2014-15
Riceville, 1940-41 thru 2014-15
Rockford1940-41 thru 2014-15
Rockwell-Swaledale, 1973-74 thru 2007-08
Rudd, 1955-56 thru 1957-58
Saint Ansgar, 1946-47 thru 2014-15
S-C-M-T, 2002-03 thru 2007-08
West Fork, 2008-09 thru 2014-15

Membership History
2015-16: Riceville leaves for the Iowa Star Conference. All remaining members (Central Springs, Nashua-Plainfield, North Butler, Northwood-Kensett, Rockford,Saint Ansgar, and West Fork) disband the conference to join with the 11 members of the North Iowa Conference to form the Top of Iowa Conference.
2008-09: Rockwell-Swaledale and  S-C-M-T consolidate to form West Fork. The new school remains in the league. Membership decreases to 8.
2007-08: North Central and Nora Springs-Rock Falls consolidate to form Central Springs. The new school remains in the league. Membership decreases to 9.
2004-05: Greene consolidates with Allison-Bristow (Iowa Star Conference) to form North Butler. The new school remains in the league. Membership remains at 10.
2002-03: Northwood-Kensett joins from the North Iowa ConferenceS-C-M-T joins from the North Star ConferenceMembership increases to 10. 
1990-91: Nashua consolidates with Plainfield to become Nashua-Plainfield.
1973-74: Rockwell-Swaledale joins from North Star Conference. Membership increases to 8.
1959-60: Manly consolidates with Hanlontown and Plymouth to form North CentralNora Springs becomes Nora Springs-Rock Falls. Membership is 7.
1958-59: Rudd leaves. Membership decreases to 7.
1955-56: Rudd joins. Greene becomes an all sports member. Membership is 8.
1947-48: Greene becomes a football-only member. membership decreases to 6.
1946-47: Saint Ansgar joins. Membership increases to 7. 
1941-42: Manly joins. Membership increases to 6.
1940-41: RicevilleGreeneNashuaRockford, and Nora Springs form the Corn Bowl Conference. Original membership is 5.