Heartland League was an independent league which ran for three seasons.
1996 Anderson IN, Lafayette IN, Huntingburg IN, Romeoville, IL
1997 Altoona PA, Clarksville TN, Columbia TN, Winchester, TN entered the league.
1998 Booneville MS, Crestwood IL and Huntington, WV entered the league and Altoona, Anderson, Clarksville, Columbia, and Romoeville left the league. During the season Booneville move to Tupelo, MS.