| Year | Champion |
Hometown
| Club (City) |
| 1970 | No Event - Weather | | Pekin CC (Pekin) |
| 1971 | Mrs. Wilson Evans | Peoria | Illini CC (Springfield) |
| 1972 | Mrs. Edward Ballman | Alton | Sunset Hills CC (Edwardsville) |
| 1973 | Mrs. John Davis | Quincy | Mt. Hawley CC (Peoria) |
| 1974 | Mrs. Lawrence Walton | Wheaton | Oak Crest CC (Springfield) |
| 1975 | Mrs. Edward Cooley | Winnetka | Exmoor CC (Highland Park) |
| 1976 | Shirley Dommers | Belvidere | Quincy CC (Quincy) |
| 1977 | Mary Jones | Mahomet | Turnberry CC (Crystal Lake) |
| 1978 | Mary Jones | Mahomet | Urbana CC (Urbana) |
| 1979 | Mary Jones | Mahomet | The Rail (Springfield) |
| 1980 | Mary Jones | Mahomet | Jacksonville CC (Jacksonville) |
| 1981 | Shirley Dommers | Belvidere | Crestwicke CC (Bloomington) |
| 1982 | Shirley Dommers | Belvidere | Rend Lake GC (Whittington) |
| 1983 | Shirley Dommers | Belvidere | Bon Vivant CC (Bourbonnais) |
| 1984 | Virginia Dennehy | Lake Forest | Pekin CC (Pekin) |
| 1985 | Mary Jones | Mahomet | Kankakee CC (Kankakee) |
| 1986 | Marlene Miller | Lake Bluff | Urbana CC (Urbana) |
| 1987 | Marlene Miller | Lake Bluff | Danville CC (Danville) |
| 1988 | Sandra Fullmer | Itasca | Rockford CC (Rockford) |
| 1989 | Sandra Fullmer | Itasca | Rock River CC (Sterling) |
| 1990 | Sandra Fullmer | Itasca | Sunset Hills CC (Edwardsville) |
| 1991 | Salley Wessels | Rockford | Spring Lake CC (Quincy) |
| 1992 | Sandra Fullmer | Itasca | Arsenal Island GC (Rock Island) |
| 1993 | Sandra Fullmer | Itasca | Pekin CC (Pekin) |
| 1994 | Salley Wessels | Rockford | Danville CC (Danville) |
| 1995 | Salley Wessels | Rockford | Soangataha CC (galesburg) |
| 1996 | Jackie Schwarz | Schaumbrug | Mattoon G&CC (Mattoon) |
| 1997 | Jackie Schwarz | Schaumburg | Arsenal Island GC (Rock Island) |
| 1998 | Jackie Schwarz | Schaumburg | Medinah CC (Medinah) |
| 1999 | Ruth Heal | DeKalb | Quail Creek G&CC (Robinson) |
| 2000 | Salley Wessels | Rockford | Bloomington CC (Bloomington) |
| 2001 | Jackie Schwarz | Schaumburg | Sunset Hills CC (Edwardsville) |
| 2002 | Salley Wessels | Rockford | Eagle Ridge Resort & Spa (Galena) |
| 2003 | Rosalie Barnet | Moline | Oakwood CC (Coal Valley) |
| 2004 | Salley Wessels | Rockford | Hickory Point GC (Decatur) |
| 2005 | Char McClear | McHenry | Piper Glen GC (Springfield) |
| 2006 | Char McClear | McHenry | Urbana CC (Urbana) |
| 2007 | Salley Wessels | Rockford | Arsenal Island GC (Rock Island) |
| 2008 | Char McClear | McHenry | Timber Pointe GC (Poplar Grove) |
| 2009 | Salley Wessels | Rockford | Mattoon CC (Mattoon) |
| 2010 | Roberta Sentel | Marion | Stone Creek GC (Urbana) |
| 2011 | Mary Kay Thanos-Zordani | Chicago | Oakwood CC (Coal Valley) |
| 2012 | Laura Carson | Lake Bluff | Jacksonville CC (Jacksonville) |
| 2013 | Leslie Page | Glendale Heights | The Den at Fox Creek (Bloomington) |
| 2014 | Sue Miller | Woodridge | Soangetaha CC (Galesburg) |
| 2015 | Jan Bowers | Lincoln | CC of Decatur (Decatur) |
| 2016 | Mary Ellen Martin | Winfield | Champaign CC (Champaign) |
| 2017 | Jan Bowers | Lincoln | Rockford CC (Rockford) |
| 2018 | Jan Bowers | Lincoln | Metamora Fields GC (Metamora) |
| 2019 | Jan Bowers | Lincoln | Bolingbrook GC (Bolingbrook) |
| 2020 | Jan Bowers | Lincoln | Soangetaha CC (Galesburg) |
| 2021 | Mary Ellen Martin | Winfield | Pekin CC (Pekin) |
| 2022 | Alison Bassetto | Naperville | Eagle Ridge Resort & Spa (Galena) |
| 2023 | Mary Ellen Martin | Winfield | Oakwood CC (Coal Valley) |
| 2024 | Deanne Stolarik | Zion | South Side CC (Decatur) |
| 2025 | Hui Chong Dofflemyer | Belvidere | Champaign CC (Champaign) |
| 2026 | | | Kankakee CC (Kankakee) |
