The 1980–81 season was the 66th season of the Isthmian League , an English football competition.
Slough Town were champions, winning their first Isthmian League title. Though, there was no promotion from the Isthmian League to the Alliance Premier League till 1985, at the end of the season two Premier Division clubs - Dagenham and Enfield were accepted to the APL. Billericay Town finished second in Division One achieving the second promotion in a row. Willesden folded at the end of the season.
Premier Division
Football league season
Isthmian League Premier Division Season 1980–81 Champions Slough Town Relegated None Matches played 462 Goals scored 1,326 (2.87 per match)
The Premier Division consisted of 22 clubs, including 20 clubs from the previous season and two new clubs, promoted from Division One:
There was no relegation from the division this season after Dagenham and Enfield joined the Alliance Premier League.
League table
Source:
fchd.com rsssf.com Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
Notes:
^ Barking were deducted two points.
^ Woking were deducted three points.
Division One
Football league season
Division One consisted of 22 clubs, including 18 clubs from the previous season and four new clubs:
Two clubs relegated from the Premier Division:
Two clubs promoted from Division Two:
League table
Source:
fchd.com rsssf.com Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
Notes:
^ Kingstonian were deducted three points.
^ Discordance between sources: fchd states that Tilbury were deducted three points, while rsssf doesn't.
Division Two
Football league season
Isthmian League Division Two Season 1980–81 Champions Feltham Promoted Feltham Hornchurch Matches played 380 Goals scored 1,042 (2.74 per match)
Second Division consisted of 20 clubs, including 17 clubs from the previous season and three new teams:
League table
Source:
fchd.com rsssf.com Rules for classification: 1) points; 2) goal difference; 3) number of goals scored.
References
2023–24 clubs
Premier Division North Division South Central Division South East Division
Seasons
National teams
League competitions
Levels 1–4 Level 5 Levels 6–7 Levels 8–9
Cup competitions
FA cups Football League cups
European competitions