At the end of the 2017 season, the competition was restructured from a geographical to a divisional structure, with promotion/relegation.

Football on the Peninsula region goes back to 1897, and in 2008 celebrated its centenary.

Clubs from the small Peninsula Junior FL also joined.

The Mornington Peninsula league would have both seniors and reserves competitions.

Some clubs were directed into the Nepean FL in 1959, and after a few years of promotion and relegation the two leagues merged in 1987.