The Alliance Premier League was established as a new, national top division of non-League football. Seven Northern Premier League clubs and thirteen clubs from the Premier Division of the Southern League joined the newly created Alliance Premier League. The remaining clubs in the Northern Premier League had effectively been relegated down one tier in the English football league system.
The following seven clubs left the League at the end of the previous season:
Updated to match(es) played on 7 May 1980. Source: The Football Archives Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
The points system up until the 1982–83 season: 2 points for a win, 1 point for a draw and 0 points for losing. (C) Champions; (P) Promoted