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| Year | Result |
| 2024 | Hinsdale 11, Elmhurst Youth Baseball 3 |
| 2023 | Elmhurst Youth Baseball 6, Hinsdale 1 |
| 2022 | Hinsdale 6, Elmhurst Youth Baseball 2 |
| 2021 | Hinsdale 8, South Elgin 1 |
| 2020 | International tournament not held due to Covid-19 pandemic |
| 2019 | River Forest Youth 7, Tri-Cities (West Dundee) 6 (7 innings) |
| 2018 | Tri-Cities (West Dundee) 4, South Springfield Area 2 |
| 2017 | Hinsdale 4, Beardstown 0 |
| 2016 | Streator 6, River Forest Youth 5 |
| 2015 | Olney 12, Western Springs 4 |
| 2014 | Tri-Cities (West Dundee) 6, Jackie Robinson West (Chicago) 0 (forfeit; see below) |
| 2013 | Jackie Robinson West (Chicago) 14, Bradley-Bourbonnais American 3 (4 innings) |
| 2012 | Streator 8, LaGrange 7 |
| 2011 | Rock Falls 4, Mundelein 3 |
| 2010 | Moline National 8, Jackie Robinson West (Chicago) 7 (8 innings) |
| 2009 | Jackie Robinson West (Chicago) 11, Western Springs 4 |
| 2008 | Jackie Robinson West (Chicago) 10, Moline National 3 |
| 2007 | Western Springs 8, Crystal Lake American 2 |
| 2006 | Lemont 10, Mundelein National 0 (5 innings) |
| 2005 | Limestone (Kankakee) 11, Mundelein American 6 |
| 2004 | Mundelein National 3, Bradley-Bourbonnais American 0 |
| 2003 | Moline National 11, Naperville National 5 |
| 2002 | Bradley-Bourbonnais American 7, River Forest 5 |
| 2001 | Lansing East 3, Moline American 1 |
| 2000 | West Lawn (Chicago) 10, Bradley-Bourbonnais American 3 |
| 1999 | West Lawn (Chicago) 3, Norridge 1 |
| 1998 | LaGrange 1, Crystal Lake National 0 |
| 1997 | Naperville American 7, Rochelle 1 |
| 1996 | Brookfield National 9, Jackie Robinson West (Chicago) 2 |
| 1995 | Aroma Park Lions 2, Moline National 0 |
| 1994 | Evergreen Park 7, Downers Grove South 6 |
| 1993 | Barrington American 24, Peru 1 |
| 1992 | South Holland South 6, Bradley-Bourbonnais American 5 |
| 1991 | Downers Grove North 6, Jackie Robinson West (Chicago) 5 |
| 1990 | South Holland South 1, Bradley-Bourbonnais National 0 |
| 1989 | Belmont (Joliet) 9, Jackie Robinson West (Chicago) 3 |
| 1988 | Belmont (Joliet) 9, South Holland South 3 |
| 1987 | Jackie Robinson West (Chicago) 16, Elgin Classic 3 |
| 1986 | Norridge 3, Bradley-Bourbonnais American 1 |
| 1985 | Milan 7, Elgin National 5 |
| 1984 | Jackie Robinson West (Chicago) 5, Belmont (Joliet) 0 |
| 1983 | Jackie Robinson West (Chicago) 9, Bradley-Bourbonnais American 4 |
| 1982 | Naperville American 12, South Holland North 0 |
| 1981 | Barrington 6, Jackie Robinson West (Chicago) 4 |
| 1980 | ockport 8, West Lawn (Chicago) 6 |
| 1979 | Elgin National 5, LaGrange American 2 |
| 1978 | Palatine South 9, Bradley-Bourbonnais 3 |
| 1977 | Belmont (Joliet) 12, Glenview National 1 |
| 1976 | Markham Manor 9, Marycrest (Joliet) 7 (7 innings) |
| 1975 | Elgin National 4, Kankakee Lions 0 |
| 1974 | Clear Ridge East (Chicago) 3, Bradley-Bourbonnais 1 |
| 1973 | Harwood Heights 6, West Lawn (Chicago) 3 |
| 1972 | West Lawn (Chicago) 5, Bradley-Bourbonnais 0 (9 innings) |
| 1971 | Kankakee Jaycees 3, Clear Ridge East (Chicago) 1 |
| 1970 | Hyde Park (Chicago) 4, Belmont (Joliet) 2 |
| 1969 | Evergreen Park National 9, Kankakee Lions 1 |
| 1968 | West Lawn (Joliet) 9, Marion 2 |
| 1967 | Roseland North (Chicago) 4, Kankakee Lions 0 |
| 1966 | Kankakee Jaycees 4, Tinley Park 2 |
| 1965 | Harvey American 5, South Cicero National 0 |
| 1964 | Robinson 2, Mount Greenwood National (Chicago) 1 |
| 1963 | Naperville 11, Prospect Heights 1 |
| 1962 | Kankakee Jaycees 13, Ralph Bermele (Chicago) 0 |
| 1961 | Downers Grove National 8, Clear Ridge (Chicago) 1 |
| 1960 | Maywood National 8, Harwood Heights 3 |
| 1959 | Elgin National 4, Forest Park 2 |
| 1958 | Kankakee Jaycees 7, Evergreen Park 3 |
| 1957 | Lyons-McCook 3, Kankakee Jaycees 2 |
NOTE: Jackie Robinson West defeated Tri-Cities 29-2 in four innings in the 2014 Illinois state championship game, but Little League Baseball's tournament committee later vacated all of the Illinois team's tournament victories and awarded the state championship to Tri-Cities Little League. Following the completion of the Little League World Series, a Little League investigation determined that Jackie Robinson West officials knowingly included players on the team's roster who lived outside the league's approved boundaries.