The first club from the Bunbury region to join the Perth-based State League was Bunbury City FC from 1979 to 1987. Bunbury Tricolore FC entered the State Amateur League in 1990, and participated there for the following 5 seasons. In 1996 they amalgamated with Ashfield to form Ashfield-Bunbury and entered the State League Division One; in 1999 this combined club won promotion to the Premier League after three seasons in Division One. The amalgamation with Ashfield was brought about mainly because of the costs involved in playing in the State League. The club in its present form was founded in 2001 after the departure of Ashfield-Bunbury from the State League. The club's name came from a competition in the Bunbury-based newspaper The South-West Times. The club entered the WA State League Division 1 and finished 6th in their first season. The club's name was changed to the Bunbury Forum Force in 2010, due to sponsorship arrangements, and they then won their first Division 1 title the year after in 2011, and therefore promoted to the WA Premier League for the 2012 season. In their two seasons in the Premier League they finished 9th and 7th, however they were not selected as one of the 12 initial teams in the newly formed National Premier Leagues WA for the 2014 season. In the 2015 season the club reverted to the name South West Phoenix FC after sponsorship arrangements expired. In 2017 SWP won their first-ever Night Series Championship and were unbeaten throughout the whole tournament. In February 2019, the squad suffered an embarrassing 3–5 defeat at the hands of local club Bunbury Dynamos in a friendly match. With goals from Chadley Edwards, Jack Menzies, Darcy Vane and Tererai Gwavava. About a week later Tony Novello resigned as the first-team coach. On 15 March 2019, South West Phoenix officially asked Football West to be removed from the Football West State League Division 1. Football West accepted SWP request. Guy Italiano then resigned as president of the club. South West Phoenix Won their first game in the SWSA Premier League with a 6–3 win away to local club Football Margaret River At the end of the SWSA Premier League Season South West Phoenix finished the season 2nd on the ladder 9 points behind eventual league champions Bunbury Dynamos.
