NSW CHS Champion Girls Schools
| Year | First | Second | Third |
|---|---|---|---|
| 1977 | Grafton HS | ||
| 1978 | Grafton HS | ||
| 1979 | Nepean HS | Grafton HS | Taree HS Penrith HS |
| 1980 | Nepean HS | Grafton HS | Tweed River HS |
| 1981 | Nepean HS | Grafton HS | Tweed River HS |
| 1982 | Nepean HS | Taree HS | Grafton |
| 1983 | Taree HS | Nepean HS Grafton HS |
|
| 1984 | Nepean HS | Grafton HS | Mt Druitt HS |
| 1985 | Grafton HS | Nepean HS | Beacon Hill HS Tweed River HS Sydney Girls HS Maclean HS Taree HS |
| 1986 | Grafton HS | Murwillumbah HS | Nepean HS Tweed River HS |
| 1987 | Grafton HS | Murwillumbah HS | Maclean HS |
| 1988 | Grafton HS | Sydney Girls HS | Murwillumbah HS |
| 1989 | North Sydney Girls HS | Maclean HS | Grafton HS |
| 1990 | Maclean HS | North Sydney Girls HS | Sydney Girls HS |
| 1991 | Maclean HS | Grafton HS | Sydney Girls HS |
| 1992 | North Sydney Girls HS | ||
| 1993 | Sydney Girls HS | North Sydney Girls HS Murwillumbah HS |
|
| 1994 | (not known) | ||
| 1995 | Sydney Girls HS | Maclean HS Jamison HS |
|
| 1996 | Maclean HS Grafton HS Taree HS |
||
| 1997 | (not known) | ||
| 1998 | Taree HS | Maclean HS | South Grafton HS |
| 1999 | South Grafton HS | Blaxland HS | Taree HS |
| 2000 | South Grafton HS | Maclean HS | Taree HS |
| 2001 | Taree HS | South Grafton HS | Maclean HS |
| 2002 | South Grafton HS | Taree HS | Maclean HS |
| 2003 | South Grafton HS | Maclean HS | Taree HS |
| 2004 | South Grafton HS | Maclean HS | Taree HS |
| 2005 | Maclean HS | South Grafton HS | Sydney Girls HS |
| 2006 | Maclean HS | South Grafton HS Grafton HS Sydney Girls HS |
|
| 2007 | Maclean HS | Grafton HS | South Grafton HS |
| 2008 | Maclean HS | Grafton HS | Sydney Girls HS |
| 2009 | Championships cancelled due to flooding |
||
| 2010 | Maclean HS | Sydney Girls HS | Grafton HS |
| 2011 | Maclean HS | Sydney Girls HS | Merewether HS |
| 2012 | Championships cancelled due to flooding |
||
| 2013 | Sydney Girls HS | Maclean HS | Grafton HS |
| 2014 | Sydney Girls HS | South Grafton HS | North Sydney Girls HS |
| 2015 | Sydney Girls HS | Maclean HS | North Sydney Girls HS |
| 2016 | Sydney Girls HS | Maclean HS | North Sydney Girls HS |
| 2017 | Sydney Girls HS | Maclean HS | Lambton HS |
| 2018 | Sydney Girls HS | Maclean HS | Sydney Secondary College |
| 2019 | Sydney Girls HS | Sydney Secondary College | Grafton HS |
| 2020 | Sydney Girls HS | Grafton HS | North Sydney Girls HS |
| 2021 | Sydney Girls HS | Grafton HS | Lambton HS |
| 2022 | Grafton High School | North Sydney Girls High School | Northern Beaches Secondary |
| 2023 | Sydney Girls High School | North Sydney Girls High School | Equal - Northern Beaches Secondary and Alexandria Park Community HS |