2010–11 Isthmian League
The 2010–11 season was the 96th season of the Isthmian League, which is an English football competition featuring semi-professional and amateur clubs from London, East and South East England.
Premier Division
The Premier Division consisted of 22 clubs, including 17 clubs from the previous season, and five new clubs:- Bury Town, promoted and transferred as champions of Southern Football League Division One Midlands
- Concord Rangers, promoted as play-off winners in Division One North
- Croydon Athletic, promoted as champions of Division One South
- Folkestone Invicta, promoted as play-off winners in Division One South
- Lowestoft Town, promoted as champions of Division One North
League table
Top scorers
Play-offs
Semi-finals
Final
Results grid
Stadia and locations
| Club | Stadium | Capacity |
| AFC Hornchurch | Hornchurch Stadium | 3,500 |
| Aveley | The Mill Field | 1,100 |
| Billericay Town | New Lodge | 3,500 |
| Bury Town | Ram Meadow | 3,500 |
| Canvey Island | Brockwell Stadium | 4,308 |
| Carshalton Athletic | War Memorial Sports Ground | 5,000 |
| Concord Rangers | Thames Road | 1,500 |
| Cray Wanderers | Hayes Lane | 6,000 |
| Croydon Athletic | Keith Tuckey Stadium | 3,000 |
| Folkestone Invicta | Cheriton Road | 4,000 |
| Harrow Borough | Earlsmead Stadium | 3,070 |
| Hastings United | The Pilot Field | 4,050 |
| Hendon | Vale Farm | 3,000 |
| Horsham | Gorings Mead | 1,500 |
| Kingstonian | Kingsmeadow | 4,722 |
| Lowestoft Town | Crown Meadow | 2,250 |
| Maidstone United | The Homelands | 3,200 |
| Margate | Hartsdown Park | 2,100 |
| Sutton United | Gander Green Lane | 7,032 |
| Tonbridge Angels | Longmead Stadium | 3,000 |
| Tooting & Mitcham United | Imperial Fields | 3,500 |
| Wealdstone | Grosvenor Vale | 2,640 |
Division One North
Division One North consisted of 22 clubs, including 18 clubs from the previous season, and four new clubs:- AFC Sudbury, transferred from Southern Football League Division One Midlands
- Grays Athletic, relegated from the Conference Premier and took voluntary demotion to this level
- Needham Market, promoted as champions of the Eastern Counties League
- Waltham Abbey, relegated from the Premier Division
East Thurrock United won the division and were promoted back to the Premier Division after two seasons of absence along with play-off winners Wingate & Finchley. Waltham Forest were reprieved due to clubs folding higher up the pyramid, so no teams were relegated from the division this season.
League table
Top scorers
Play-offs
Semi-finals
Final
Results grid
Stadia and locations
| Club | Stadium | Capacity |
| AFC Sudbury | King's Marsh | 3,800 |
| Brentwood Town | The Brentwood Centre Arena | 1,800 |
| Cheshunt | Cheshunt Stadium | 3,000 |
| East Thurrock United | Rookery Hill | 4,000 |
| Enfield Town | Goldsdown Road | 3,000 |
| Grays Athletic | Rookery Hill | 4,000 |
| Great Wakering Rovers | Burroughs Park | 3,500 |
| Harlow Town | Barrows Farm | 3,500 |
| Heybridge Swifts | Scraley Road | 3,000 |
| Ilford | Cricklefield Stadium | 3,500 |
| Leyton | Leyton Stadium | 2,500 |
| Maldon & Tiptree | Wallace Binder Ground | 2,000 |
| Needham Market | Bloomfields | 4,000 |
| Potters Bar Town | Parkfield | 2,000 |
| Redbridge | Oakside | 3,000 |
| Romford | Mill Field | 1,100 |
| Thamesmead Town | Bayliss Avenue | 6,000 |
| Tilbury | Chadfields | 4,000 |
| Waltham Abbey | Capershotts | 3,500 |
| Waltham Forest | Cricklefield Stadium | 3,500 |
| Ware | Wodson Park | 3,300 |
| Wingate & Finchley | The Harry Abrahams Stadium | 1,500 |
Division One South
Division One South consisted of 22 clubs, including 19 clubs from the previous season, and three new clubs:- Bognor Regis Town, relegated from the Premier Division
- Faversham Town, promoted as champions of the Kent League
- Whitehawk, promoted as champions of the Sussex County League
League table
Top scorers
Play-offs
Semi-finals
Final
Results grid
Stadia and locations
| Club | Stadium | Capacity |
| Chatham Town | The Sports Ground | 5,000 |
| Bognor Regis Town | Nyewood Lane | 4,000 |
| Burgess Hill Town | Leylands Park | 2,000 |
| Chipstead | High Road | 2,000 |
| Corinthian-Casuals | King George's Field | 2,700 |
| Dulwich Hamlet | Champion Hill | 3,000 |
| Eastbourne Town | The Saffrons | 3,000 |
| Faversham Town | Shepherd Neame Stadium | 2,000 |
| Fleet Town | Calthorpe Park | 2,000 |
| Godalming Town | Weycourt | 3,000 |
| Horsham YMCA | Gorings Mead | 1,500 |
| Leatherhead | Fetcham Grove | 3,400 |
| Merstham | Moatside | 2,000 |
| Metropolitan Police | Imber Court | 3,000 |
| Ramsgate | Southwood Stadium | 2,500 |
| Sittingbourne | Bourne Park | 3,000 |
| Walton & Hersham | The Sports Ground | 2,000 |
| Walton Casuals | Waterside Stadium | 2,000 |
| Whitehawk | The Enclosed Ground | 2,000 |
| Whitstable Town | The Belmont Ground | 3,000 |
| Whyteleafe | Church Road | 2,000 |
| Worthing | Woodside Road | 4,000 |
League Cup
The Isthmian League Cup 2010–11 is the 37th season of the Isthmian League Cup, the cup competition of the whole Isthmian League. Sixty-six clubs took part.Calendar
First round
Four clubs from division Ones participated in the First round, while all other clubs received a bye to the Second round.| Tie | Home Team | Score | Away Team | |
| 1 | Waltham Forest | 1–0 | Grays Athletic | 75 |
| 2 | Fleet Town | 4–3 | Horsham YMCA | 63 |