This is a list of electoral results for the electoral district of Collie-Preston in Western Australian state elections.

Members for Collie South-West MiningMemberPartyTerm  John Ewing Ministerial 1901–1904 Collie  Ernest Henshaw Labor 1904–1905  John Ewing Ministerial 1905–1908  Arthur Wilson Labor 1908–1947  Harry May Labor 1947–1968  Tom Jones Labor 1968–1989  Dr Hilda Turnbull National 1989–2001  Mick Murray Labor 2001–2005 Collie-Wellington  Mick Murray Labor 2005–2008 Collie-Preston  Mick Murray Labor 2008–2021  Jodie Hanns Labor 2021–present

Election results Elections in the 2020s

Elections in the 2010s

Elections in the 2000s

Elections in the 1990s

Elections in the 1980s

Elections in the 1970s

Elections in the 1960s

Two party preferred vote was estimated.

Elections in the 1950s

Two party preferred vote was estimated.

Elections in the 1940s

Elections in the 1930s

Elections in the 1920s

Elections in the 1910s

Elections in the 1900s

References