A pair of three-time champions added to their totals in the 1970s. Elgin National added a pair of crowns to the title it won in 1959, while Joliet Belmont won its first title during the 25th anniversary of the league's charter in 1977.
Palatine South earned Illinois' only World Series berth in the decade when its 1978 squad defeated Detroit Southwestern (MI) to win the Central Region tournament.
Select a year to see details from that year's state tournament.
State Champions of the 1970s
1979 - Elgin National
1978 - Palatine South
1977 - Joliet Belmont
1976 - Markham Manor
1975 - Elgin National
1974 - Chicago Clear Ridge East
1973 - Harwood Heights
1972 - Chicago Westlawn
1971 - Kankakee Jaycees
1970 - Chicago Hyde Park