| Dates | 6 May – 15 September 1981 |
|---|---|
| Administrator | England and Wales Cricket Board |
| Cricket format | First-class cricket |
| Tournament format | League system |
| Champions | Nottinghamshire (3rd title) |
| Participants | 17 |
| Matches | 187 |
| Most runs | Zaheer Abbas, (Gloucestershire) 2,230 |
| Most wickets | Richard Hadlee, (Nottinghamshire) 105 |
The 1981 Schweppes County Championship was the 82nd officially organised running of the County Championship. Nottinghamshire won the Championship title.
The number of points awarded for a win was increased to 16. The Championship was sponsored by Schweppes for the fourth time.
| Team | P | W | L | D | Bat | Bowl | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1 | Nottinghamshire | 22 | 11 | 4 | 7 | 56 | 72 | 304 |
| 2 | Sussex | 22 | 11 | 3 | 8 | 58 | 68 | 302 |
| 3 | Somerset | 22 | 10 | 2 | 10 | 54 | 65 | 279 |
| 4 | Middlesex | 22 | 9 | 3 | 10 | 49 | 64 | 257 |
| 5 | Essex | 22 | 8 | 4 | 10 | 62 | 64 | 254 |
| 6 | Surrey | 22 | 7 | 5 | 10 | 52 | 72 | 236 |
| 7 | Hampshire | 22 | 6 | 7 | 9 | 45 | 65 | 206 |
| 8 | Leicestershire | 22 | 6 | 6 | 10 | 45 | 58 | 199 |
| 9 | Kent | 22 | 5 | 7 | 10 | 51 | 58 | 189 |
| 10 | Yorkshire | 22 | 5 | 9 | 8 | 41 | 66 | 187 |
| 11 | Worcestershire | 22 | 5 | 9 | 8 | 44 | 52 | 172 |
| 12 | Derbyshire | 22 | 4 | 7 | 11 | 51 | 57 | 172 |
| 13 | Gloucestershire | 22 | 4 | 3 | 15 | 51 | 55 | 170 |
| 14 | Glamorgan | 22 | 3 | 10 | 9 | 50 | 69 | 167 |
| 15 | Northamptonshire | 22 | 3 | 6 | 13 | 51 | 67 | 166 |
| 16 | Lancashire | 22 | 4 | 7 | 11 | 47 | 57 | 164 |
| 17 | Warwickshire | 22 | 2 | 11 | 9 | 56 | 47 | 135 |