Isthmian League Tables
1987/88 Tables◄ 1988/89 Tables ►1989/90 Tables
Isthmian League Premier Division 1988/89
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Leytonstone/Ilford | 42 | 26 | 11 | 5 | 76 | 36 | +40 | 89 | Champions |
| 2nd | Farnborough Town | 42 | 24 | 9 | 9 | 85 | 61 | +24 | 81 | ▲Runners Up |
| 3rd | Slough Town | 42 | 24 | 6 | 12 | 72 | 42 | +30 | 78 | - |
| 4th | Carshalton Athletic | 42 | 19 | 15 | 8 | 59 | 36 | +23 | 72 | - |
| 5th | Grays Athletic | 42 | 19 | 13 | 10 | 62 | 47 | +15 | 70 | - |
| 6th | Kingstonian | 42 | 19 | 11 | 12 | 54 | 37 | +17 | 68 | - |
| 7th | Bishop's Stortford | 42 | 20 | 6 | 16 | 70 | 56 | +14 | 66 | - |
| 8th | Hayes | 42 | 18 | 12 | 12 | 61 | 47 | +14 | 66 | - |
| 9th | Bognor Regis Town | 42 | 17 | 11 | 14 | 38 | 49 | -11 | 62 | - |
| 10th | Barking | 42 | 16 | 13 | 13 | 49 | 45 | +4 | 61 | - |
| 11th | Wokingham Town | 42 | 15 | 11 | 16 | 60 | 54 | +6 | 56 | - |
| 12th | Hendon | 42 | 13 | 17 | 12 | 51 | 66 | -17 | 56 | - |
| 13th | Windsor & Eton | 42 | 14 | 13 | 15 | 52 | 50 | +2 | 56 | - |
| 14th | Bromley | 42 | 13 | 15 | 14 | 61 | 48 | +13 | 54 | - |
| 15th | Leyton-Wingate | 42 | 13 | 15 | 14 | 55 | 56 | -1 | 54 | - |
| 16th | Dulwich Hamlet | 42 | 12 | 12 | 18 | 58 | 57 | +1 | 48 | - |
| 17th | St Albans City | 42 | 12 | 9 | 21 | 51 | 59 | -8 | 45 | - |
| 18th | Dagenham | 42 | 11 | 12 | 19 | 53 | 68 | -15 | 45 | - |
| 19th | Harrow Borough | 42 | 9 | 13 | 20 | 53 | 75 | -22 | 40 | - |
| 20th | Marlow | 42 | 9 | 11 | 22 | 48 | 83 | -35 | 38 | - |
| 21st | Tooting & Mitcham United | 42 | 10 | 6 | 26 | 41 | 81 | -40 | 36 | ▼Relegated |
| 22nd | Croydon | 42 | 4 | 9 | 29 | 27 | 81 | -54 | 21 | ▼Relegated |
Isthmian League Division 1 1988/89
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Staines Town | 40 | 26 | 9 | 5 | 79 | 29 | +50 | 87 | ▲Champions |
| 2nd | Basingstoke Town | 40 | 25 | 8 | 7 | 85 | 36 | +49 | 83 | ▲Runners Up |
| 3rd | Woking | 40 | 24 | 10 | 6 | 72 | 30 | +42 | 82 | - |
| 4th | Hitchin Town | 40 | 21 | 11 | 8 | 60 | 32 | +28 | 74 | - |
| 5th | Wivenhoe Town | 40 | 22 | 6 | 12 | 62 | 44 | +18 | 72 | - |
| 6th | Lewes | 40 | 21 | 8 | 11 | 72 | 54 | +18 | 71 | - |
| 7th | Walton & Hersham | 40 | 21 | 7 | 12 | 56 | 36 | +20 | 70 | - |
| 8th | Kingsbury Town | 40 | 20 | 7 | 13 | 65 | 41 | +24 | 67 | - |
| 9th | Uxbridge | 40 | 19 | 7 | 14 | 60 | 54 | +6 | 64 | - |
| 10th | Wembley | 40 | 18 | 6 | 16 | 45 | 58 | -13 | 60 | - |
| 11th | Boreham Wood | 40 | 16 | 9 | 15 | 57 | 52 | +5 | 57 | - |
| 12th | Leatherhead | 40 | 14 | 8 | 18 | 56 | 58 | -2 | 50 | - |
| 13th | Metropolitan Police | 40 | 13 | 9 | 18 | 52 | 68 | -16 | 48 | - |
| 14th | Chesham United | 40 | 12 | 9 | 19 | 54 | 67 | -13 | 46 | - |
| 15th | Southwick | 40 | 9 | 15 | 16 | 44 | 58 | -14 | 42 | - |
| 16th | Chalfont St Peter | 40 | 11 | 9 | 20 | 56 | 82 | -26 | 42 | - |
| 17th | Hampton | 40 | 7 | 14 | 17 | 37 | 62 | -25 | 35 | - |
| 18th | Worthing | 40 | 8 | 10 | 22 | 49 | 80 | -31 | 32* | * -2 Points |
| 19th | Collier Row | 40 | 8 | 7 | 25 | 37 | 82 | -45 | 31 | ▼Div 2 North |
| 20th | Bracknell Town | 40 | 8 | 6 | 26 | 38 | 70 | -32 | 30 | ▼Div 2 South |
| 21st | Basildon United | 40 | 6 | 7 | 27 | 34 | 77 | -43 | 26 | ▼Div 2 North |
Isthmian League Division 2 North 1988/89
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Harlow Town | 42 | 27 | 9 | 6 | 83 | 38 | +45 | 90 | ▲Champions |
| 2nd | Purfleet | 42 | 22 | 12 | 8 | 60 | 42 | +18 | 78 | ▲Runners Up |
| 3rd | Tring Town | 42 | 22 | 10 | 10 | 65 | 44 | +21 | 76 | - |
| 4th | Stevenage Borough | 42 | 20 | 13 | 7 | 84 | 55 | +29 | 73 | - |
| 5th | Heybridge Swifts | 42 | 21 | 9 | 12 | 64 | 43 | +21 | 72 | - |
| 6th | Billericay Town | 42 | 19 | 11 | 12 | 65 | 52 | +13 | 68 | - |
| 7th | Clapton | 42 | 18 | 11 | 13 | 65 | 56 | +9 | 65 | - |
| 8th | Barton Rovers | 42 | 18 | 11 | 13 | 58 | 50 | +8 | 65 | - |
| 9th | Aveley | 42 | 18 | 10 | 14 | 54 | 52 | +2 | 64 | - |
| 10th | Hertford Town | 42 | 16 | 13 | 13 | 62 | 49 | +13 | 59* | * -2 Points |
| 11th | Ware | 42 | 17 | 8 | 17 | 60 | 65 | -5 | 59 | - |
| 12th | Hemel Hempstead | 42 | 16 | 10 | 16 | 55 | 58 | -3 | 58 | - |
| 13th | Witham Town | 42 | 16 | 7 | 19 | 69 | 67 | +2 | 55 | - |
| 14th | Vauxhall Motors | 42 | 15 | 9 | 18 | 53 | 57 | -4 | 54 | - |
| 15th | Berkhamsted Town | 42 | 14 | 10 | 18 | 57 | 70 | -13 | 52 | - |
| 16th | Hornchurch | 42 | 11 | 16 | 15 | 59 | 61 | -2 | 49 | - |
| 17th | Tilbury | 42 | 13 | 10 | 19 | 53 | 60 | -7 | 49 | - |
| 18th | Royston Town | 42 | 12 | 7 | 23 | 46 | 72 | -26 | 42 | - |
| 19th | Rainham Town | 42 | 9 | 15 | 18 | 49 | 62 | -13 | 42 | - |
| 20th | Saffron Walden Town | 42 | 8 | 16 | 18 | 54 | 72 | -18 | 40 | - |
| 21st | Letchworth Garden City | 42 | 4 | 18 | 20 | 34 | 71 | -37 | 30 | - |
| 22nd | Wolverton Town | 42 | 5 | 7 | 30 | 42 | 95 | -53 | 13* | ▼Relegated |
* Wolverton Town were Deducted 9 Points
Isthmian League Division 2 South 1988/89
| Pos | Club | Pld | W | D | L | F | A | GD | Pts | Notes |
| 1st | Dorking | 40 | 32 | 4 | 4 | 109 | 35 | +74 | 100 | ▲Champions |
| 2nd | Whyteleafe | 40 | 25 | 9 | 6 | 86 | 41 | +45 | 84 | ▲Runners Up |
| 3rd | Finchley | 40 | 21 | 9 | 10 | 70 | 45 | +25 | 72 | ►Div 2 North |
| 4th | Molesey | 40 | 19 | 13 | 8 | 58 | 42 | +16 | 70 | - |
| 5th | Harefield United | 40 | 19 | 7 | 14 | 56 | 45 | +11 | 64 | - |
| 6th | Hungerford Town | 40 | 17 | 13 | 10 | 55 | 45 | +10 | 64 | - |
| 7th | Ruislip Manor | 40 | 16 | 9 | 15 | 56 | 43 | +13 | 57 | - |
| 8th | Feltham | 40 | 16 | 9 | 15 | 58 | 53 | +5 | 57 | - |
| 9th | Epsom & Ewell | 40 | 16 | 8 | 16 | 55 | 55 | 0 | 56 | - |
| 10th | Egham Town | 40 | 16 | 7 | 17 | 54 | 58 | -4 | 55 | - |
| 11th | Eastbourne United | 40 | 15 | 9 | 16 | 68 | 61 | +7 | 54 | - |
| 12th | Chertsey Town | 40 | 13 | 14 | 13 | 55 | 58 | -3 | 53 | - |
| 13th | Flackwell Heath | 40 | 13 | 11 | 16 | 51 | 49 | +2 | 50 | - |
| 14th | Camberley Town | 40 | 15 | 5 | 20 | 51 | 71 | -20 | 50 | - |
| 15th | Yeading | 40 | 13 | 9 | 18 | 47 | 63 | -16 | 46* | * -2 Points |
| 16th | Banstead Athletic | 40 | 12 | 8 | 20 | 50 | 65 | -15 | 44 | - |
| 17th | Maidenhead United | 40 | 10 | 13 | 17 | 44 | 61 | -17 | 43 | - |
| 18th | Southall | 40 | 11 | 10 | 19 | 41 | 73 | -32 | 43 | - |
| 19th | Newbury Town | 40 | 11 | 8 | 21 | 47 | 65 | -18 | 41 | - |
| 20th | Horsham | 40 | 7 | 14 | 19 | 36 | 68 | -32 | 35 | - |
| 21st | Petersfield United | 40 | 5 | 7 | 28 | 36 | 87 | -51 | 22 | - |
Isthmian League - End of Season Notes
|
Teams Leaving the Isthmian League |
| ▲Farnborough Town were Promoted to the 1989/90 Football Conference |
| ▼Wolverton Town were Relegated to the South Midlands League |
--
|
Teams Joining the Isthmian League |
| ▼Aylesbury United were Relegated from the 1988/89 Football Conference |
| ▲Abingdon Town were Promoted from the Spartan League |
| ▲Malden Vale were Promoted from the Combined Counties League |
-
|
Team Name Changes |
| - Leytonstone/Ilford changed their name to Redbridge Forest |
1987/88 Tables◄ 1988/89 Tables ►1989/90 Tables