West Premierships since 1946 by grade/division. Men's teams were nominated from 1988 onwards (initially B Grade Men) and a Division 1 Men's team was first nominated in 1994. The U15 boys competition commenced in 1991, and the U15 girls a year later in 1992.

Division 1 Men - 1995, 2006, 2016, 2021, 2024.

A Grade Women/Division 1 Women - 1946, 1959, 1960, 1963, 1964, 1966, 1967, 1970, 1971, 1973, 1974, 1976, 1982, 1983, 1987, 1988, 1994, 1995, 1997, 2000, 2001, 2002, 2005, 2011, 2013, 2014, 2015, 2017, 2018, 2019, 2020, 2021, 2022, 2024.

B Grade Men/Division 2 Men - 1993.

B Grade Women/Division 2 Women - 1959, 1971, 1981, 1990, 2021.

Division 3 Men - 2009, 2010.

C Grade Women/Division 3 Women - 1980, 1981, 1982.

Under 15 Boys - 2003, 2004, 2006, 2011.

Under 15 Girls - 1993, 2002, 2003, 2009, 2011, 2016, 2019.

Under 12 or 13 Boys - 2001, 2002.

Under 12 or 13 Girls - 2007, 2008, 2012, 2013, 2021.