Isthmian League Tables
1979/80 Tables◄ 1980/81 Tables ►1981/82 Tables
Isthmian League Premier Division 1980/81
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Slough Town | 42 | 23 | 13 | 6 | 73 | 34 | +39 | 82 | Champions |
| 2nd | Enfield | 42 | 23 | 11 | 8 | 81 | 43 | +38 | 80 | ▲Joined APL |
| 3rd | Wycombe Wanderers | 42 | 22 | 9 | 11 | 76 | 49 | +27 | 75 | - |
| 4th | Leytonstone & Ilford | 42 | 19 | 12 | 11 | 78 | 57 | +21 | 69 | - |
| 5th | Sutton United | 42 | 19 | 12 | 11 | 82 | 65 | +17 | 69 | - |
| 6th | Hendon | 42 | 18 | 10 | 14 | 66 | 58 | +8 | 64 | - |
| 7th | Hayes | 42 | 18 | 8 | 16 | 45 | 50 | -5 | 62 | - |
| 8th | Dagenham | 42 | 17 | 11 | 14 | 79 | 66 | +13 | 62 | ▲Joined APL |
| 9th | Harrow Borough | 42 | 16 | 11 | 15 | 57 | 52 | +5 | 59 | - |
| 10th | Bromley | 42 | 16 | 9 | 17 | 63 | 69 | -6 | 57 | - |
| 11th | Staines Town | 42 | 15 | 9 | 18 | 60 | 61 | -1 | 54 | - |
| 12th | Tooting & Mitcham United | 42 | 15 | 8 | 19 | 49 | 53 | -4 | 53 | - |
| 13th | Hitchin Town | 42 | 14 | 10 | 18 | 64 | 62 | +2 | 52 | - |
| 14th | Croydon | 42 | 12 | 15 | 15 | 51 | 51 | 0 | 51 | - |
| 15th | Dulwich Hamlet | 42 | 13 | 12 | 17 | 62 | 67 | -5 | 51 | - |
| 16th | Leatherhead | 42 | 12 | 14 | 16 | 36 | 50 | -14 | 50 | - |
| 17th | Carshalton Athletic | 42 | 14 | 8 | 20 | 57 | 82 | -25 | 50 | - |
| 18th | Barking | 42 | 13 | 12 | 17 | 58 | 72 | -14 | 49* | * -2 Points |
| 19th | Harlow Town | 42 | 11 | 15 | 16 | 53 | 66 | -13 | 48 | - |
| 20th | Walthamstow Avenue | 42 | 13 | 7 | 22 | 50 | 81 | -31 | 46 | - |
| 21st | Boreham Wood | 42 | 10 | 13 | 19 | 46 | 69 | -23 | 43 | - |
| 22nd | Woking | 42 | 11 | 7 | 24 | 40 | 69 | -29 | 37* | * -3 Points |
Isthmian League Division 1 1980/81
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Bishop's Stortford | 42 | 30 | 6 | 6 | 84 | 28 | +56 | 96 | ▲Champions |
| 2nd | Billericay Town | 42 | 29 | 6 | 7 | 67 | 34 | +33 | 93 | ▲Runners Up |
| 3rd | Epsom & Ewell | 42 | 24 | 12 | 6 | 80 | 36 | +44 | 84 | - |
| 4th | Farnborough Town | 42 | 23 | 11 | 8 | 75 | 39 | +36 | 80 | - |
| 5th | St Albans City | 42 | 24 | 5 | 13 | 85 | 61 | +24 | 77 | - |
| 6th | Kingstonian | 42 | 20 | 9 | 13 | 63 | 51 | +12 | 66* | * -2 Points |
| 7th | Oxford City | 42 | 18 | 9 | 15 | 71 | 48 | +23 | 63 | - |
| 8th | Wokingham Town | 42 | 16 | 15 | 11 | 70 | 56 | +14 | 63 | - |
| 9th | Metropolitan Police | 42 | 18 | 7 | 17 | 61 | 58 | +3 | 61 | - |
| 10th | Chesham United | 42 | 17 | 7 | 18 | 64 | 64 | 0 | 58 | - |
| 11th | Lewes | 42 | 17 | 7 | 18 | 72 | 83 | -11 | 58 | - |
| 12th | Maidenhead United | 42 | 16 | 7 | 19 | 58 | 62 | -4 | 55 | - |
| 13th | Walton & Hersham | 42 | 12 | 15 | 15 | 46 | 53 | -7 | 51 | - |
| 14th | Hertford Town | 42 | 13 | 11 | 18 | 46 | 65 | -19 | 50 | - |
| 15th | Hampton | 42 | 12 | 13 | 17 | 46 | 53 | -7 | 49 | - |
| 16th | Aveley | 42 | 13 | 9 | 20 | 54 | 55 | -1 | 48 | - |
| 17th | Wembley | 42 | 13 | 8 | 21 | 47 | 61 | -14 | 47 | - |
| 18th | Clapton | 42 | 12 | 8 | 22 | 53 | 86 | -33 | 44 | - |
| 19th | Ware | 42 | 9 | 13 | 20 | 50 | 69 | -19 | 40 | - |
| 20th | Tilbury | 42 | 10 | 8 | 24 | 42 | 84 | -42 | 38* | * -3 Points |
| 21st | Camberley Town | 42 | 8 | 7 | 27 | 42 | 88 | -46 | 31 | ▼Relegated |
| 22nd | Finchley | 42 | 6 | 11 | 25 | 35 | 77 | -42 | 29 | ▼Relegated |
Isthmian League Division 2 1980/81
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Feltham | 38 | 24 | 10 | 4 | 65 | 30 | +35 | 82 | ▲Champions |
| 2nd | Hornchurch | 38 | 25 | 6 | 7 | 74 | 35 | +39 | 81 | ▲Runners Up |
| 3rd | Hungerford Town | 38 | 23 | 10 | 5 | 84 | 29 | +55 | 79 | - |
| 4th | Barton Rovers | 38 | 19 | 11 | 8 | 61 | 26 | +35 | 68 | - |
| 5th | Worthing | 38 | 19 | 11 | 8 | 74 | 43 | +31 | 68 | - |
| 6th | Cheshunt | 38 | 19 | 11 | 8 | 57 | 33 | +24 | 68 | - |
| 7th | Letchworth Garden City | 38 | 18 | 7 | 13 | 49 | 40 | +9 | 61 | - |
| 8th | Southall | 38 | 14 | 11 | 13 | 48 | 52 | -4 | 53 | - |
| 9th | Dorking Town | 38 | 13 | 12 | 13 | 47 | 45 | +2 | 51 | - |
| 10th | Horsham | 38 | 16 | 3 | 19 | 47 | 47 | 0 | 51 | - |
| 11th | Hemel Hempstead | 38 | 14 | 7 | 17 | 49 | 55 | -6 | 49 | - |
| 12th | Egham Town | 38 | 13 | 9 | 16 | 45 | 62 | -17 | 48 | - |
| 13th | Harwich & Parkeston | 38 | 12 | 11 | 15 | 57 | 58 | -1 | 47 | - |
| 14th | Rainham Town | 38 | 11 | 13 | 14 | 44 | 45 | -1 | 46 | - |
| 15th | Epping Town | 38 | 12 | 7 | 19 | 37 | 50 | -13 | 43 | - |
| 16th | Eastbourne United | 38 | 11 | 10 | 17 | 59 | 75 | -16 | 43 | - |
| 17th | Willesden | 38 | 11 | 8 | 19 | 57 | 68 | -11 | 41 | Resigned |
| 18th | Tring Town | 38 | 11 | 6 | 21 | 40 | 71 | -31 | 39 | - |
| 19th | Molesey | 38 | 4 | 9 | 25 | 31 | 83 | -52 | 21 | - |
| 20th | Corinthian-Casuals | 38 | 1 | 8 | 29 | 17 | 95 | -78 | 11 | - |
Isthmian League - End of Season Notes--
|
Teams Leaving the Isthmian League |
| ▲Dagenham left the League to join the Alliance Premier League |
| ▲Enfield left the League to join the Alliance Premier League |
| ▼Willesden Resigned from the League and Folded |
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|
Teams Joining the Isthmian League |
| ▲Bognor Regis Town Transferred from the Southern League Southern Division |
| ▲Windsor & Eton were Promoted from the Athenian League |
| ▲Basildon United were Promoted from the Athenian League |
1979/80 Tables◄ 1980/81 Tables ►1981/82 Tables