Pleasant Valley, 1986-87 thru PRESENT

2019-20: Burlington leaves for the Southeast Conference. Membership decreases to 9.

1986-87: Pleasant Valley joins, after competing as an independent. Membership increases to 10.

1985-86: Davenport North is opened and joins the conference. Membership increase to 9. Conference name is changed to Mississippi Athletic Conference.

1978-79: Assumption, Davenport, Davenport Central, and Davenport West of the disbanding Quad Cities Metro Conference; Bettendorf, Clinton, and Muscatine of the Mississippi Valley Conference; Burlington, an independent; and North Scott of the Big Bend Conference form the Mississippi Eight Conference.