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River Valley (2013 - Present)

North
  • Anamosa - 2018-19 thru PRESENT
  • Bellevue - 2013-14 thru PRESENT
  • Camanche - 2013-14 thru PRESENT
  • Cascade - 2013-14 thru PRESENT
  • Monticello - 2013-14 thru PRESENT
  • North Cedar - 2008-09 thru PRESENT
  • Northeast - 2013-14 thru PRESENT
South
  • Durant - 2008-09 thru PRESENT
  • Iowa City Regina - 2008-09 thru PRESENT
  • Mid-Prairie - 2008-09 thru PRESENT
  • Tipton - 2008-09 thru PRESENT
  • Wilton - 2008-09 thru PRESENT
  • West Branch - 2008-09 thru PRESENT
  • West Liberty - 2008-09 thru PRESENT
Membership Changes

2018-19:

Anamosa joins from the WaMac Conference. Membership increases to 14.

2013-14:

Bellevue, Camanche, and Northeast join from the disbanding Big East Conference. Cascade and Monticello join from the Tri-Rivers Conference. Membership increases to 13. Conference renamed River Valley Conference.

2008-09:

Durant, Mid-Prairie, Regina, Tipton, West Branch, West Liberty, and Wilton of the disbanding Eastern Iowa Hawkeye Conference; and North Cedar of the Big East Conference form the Cedar Valley Conference. Original membership is 8.

Big East (2003 - 2013)

  • Andrew - 1993-94 thru 2010-11
  • Bellevue - 1993-94 thru 2012-13
  • Bennett - 1993-94 thru 2004-05
  • Calamus-Wheatland - 1993-94 thru 2012-13
  • Camanche - 2003-04 thru 2012-13
  • Clinton Mater Dei - 1993-94 thru 2012-13
  • East Central - 1993-94 thru 2010-11
  • Lisbon - 1993-94 thru 2012-13
  • Marquette Catholic, Bellevue - 1993-94 thru 2012-13
  • Midland - 1993-94 thru 2012-13
  • North Cedar - 1993-94 thru 2007-08
  • Northeast - 1993-94 thru 2012-13
  • Olin - 1993-94 thru 2010-11
  • Preston - 1993-94 thru 2012-13
Membership Changes

2013-14:

Marquette Catholic, Bellevue, Lisbon, Midland, Calamus-Wheatland, Prince of Peace Prep, and a reorganized Easton Valley (made up of Preston and defunct East Central) leave for the Tri-Rivers Conference. Bellevue, Northeast, and Camanche leave for the Cedar Valley Conference, which forms the River Valley Conference. The conference disbands.

2011-12:

Andrew, Olin, and East Central close. Membership decreases to 9.

2008-09:

North Cedar leaves to help form the Cedar Valley Conference. Membership decreases to 12.

2005-06:

Bennett is absorbed by Durant (Eastern Iowa Hawkeye Conference). Membership decreases to 13.

2003-04:

Camanche joins from the disbanding Big Bend Conference. Membership increases to 14.

2000-01:

Mater Dei changes it name to Prince of Peace Prep. Membership remains at 13.

1993-94:

The Wapsie Conference (made up of Marquette Catholic, Bellevue, Calamus-Wheatland, Bellevue, Andrew, Bennett, and Mater Dei) merges with the Mid-East Conference (made up of Northeast, Midland, Lisbon, Preston, Olin, East Central, Clarence-Lowden, and Lincoln, Stanwood) to form the Big East Conference. Clarence-Lowden and Lincoln, Stanwood consolidate to form North Cedar and remain in the new league. Original membership is 13.

Big Bend (1987 - 2003)

  • Anamosa - 1987-88 thru 2002-03
  • Camanche - 1987-88 thru 2002-03
  • Cascade - 1987-88 thru 2002-03
  • Central Clinton of DeWitt - 1987-88 thru 2002-03
  • Dyersville Beckman - 1987-88 thru 2002-03
  • Maquoketa - 1987-88 thru 2002-03
  • Monticello - 1987-88 thru 2002-03
  • Western Dubuque -1987-88 thru 2002-03
Membership Changes

2003-04:

Beckman, Western Dubuque, and Central Clinton join the WaMaC Conference. Monticello, Anamosa, and Cascade join the Tri-Rivers Conference. Camanche joins the Big East Conference. The league disbands.

1998-99:

Maquoketa leaves for the WaMaC Conference. Membership decreases to 7.

1987-88:

Maquoketa, Monticello, and Anamosa of the WaMaC Conference; Beckman, Western Dubuque, Central Clinton, Camanche, and Cascade, all previously independent, re-establish the Big Bend Conference. Membership is 8.

Independent (1985 - 1987)

Big Bend (1975 - 1985)

  • Bellevue - 1978-79 thru 1982-83
  • Camanche - 1975-76 thru 1984-85
  • Central Clinton/Dewitt - 1975-76 thru 1984-85
  • Clinton Saint Mary's - 1975-76 thru 1979-80
  • Clinton Mater Dai - 1980-81 thru 1983-84
  • Northeast - 1975-76 thru 1983-84
  • North Scott - 1975-76 thru 1977-78
  • Pleasant Valley - 1975-76 thru 1984-85
  • Western Dubuque -1976-77 thru 1984-85;
Membership Changes

1985-86:

The league disbands. Pleasant Valley, Central Clinton, Cascade, Western Dubuque, and Camanche become independents.

1984-85:

Mater Dei (to Wapsie Conference) and Northeast (to Mid-East Conference) leave the conference. Membership decreases to 5.

1983-84:

Bellevue leaves the conference for Wapsie Conference. Membership decreases to 7.

1980-81:

St. Mary's, Clinton becomes Mater Dei. Membership remains at 8.

1978-79:

Cascade joins from the Eastern Iowa Conference. Bellevue joins from the Great River Conference. North Scott leaves to help found the Mississippi Athletic Conference. Membership increases to 8.

1976-77:

Western Dubuque joins from the Eastern Iowa Conference. Membership increases to 7.

1975-76:

Central Clinton, North Scott, and St. Mary's, Clinton of the disbanding Illiowa Conference; and Camanche, Northeast, and Pleasant Valley of the disbanding Bi-State Conference form the Big Bend Conference. Original membership is 6.

Bi-State (1970 - 1975)

  • Camanche - 1970-71 thru 1974-75
  • Northeast - 1970-71 thru 1974-75
  • Pleasant Valley - 1970-71 thru 1974-75
  • Erie (IL) - 1970-71 thru 1974-75
  • Prophetstown (IL) - 1970-71 thru 1974-75
Membership Changes

1975-76:

Pleasant Valley, Camanche, and Northeast leave to help found the Big Bend Conference. Erie (IL) and Prophetstown (IL) leave to helpfound the Three Rivers Conference. Conference disbands.

1970-71:

Pleasant Valley, Camanche, Northeast, Erie (IL), and Prophetstown (IL) form the Bi-State Conference. Original membership is 5.