Both divisions were formed as a result of the league's national expansion in the 2018–19 season.
[1] As of 2024, the South Division consists of 15 teams.
The most recent realignment occurred in the 2024 season.
In that season, the returning Davao Occidental Tigers were placed back into the South Division while the Bacoor City Strikers departed from the league.
Numbers in parentheses indicate the number of times that team has appeared in the South Division finals, as well as each respective teams' South Division finals record up to date.