| Dates | 30 April – 5 September 1980 |
|---|---|
| Administrator | England and Wales Cricket Board |
| Cricket format | First-class cricket |
| Tournament format | League system |
| Champions | Middlesex (6th title) |
| Participants | 17 |
| Matches | 183 |
| Most runs | Peter Kirsten, (Derbyshire) 2,441 |
| Most wickets | Robin Jackman, (Surrey) 114 |
The 1980 Schweppes County Championship was the 81st officially organised running of the County Championship. Middlesex won the Championship title.
Four matches were abandoned without a ball being bowled and are not included in the table. The Championship was sponsored by Schweppes for the third time.
| Team | P | W | L | D | Bat | Bowl | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1 | Middlesex | 22 | 10 | 2 | 10 | 58 | 80 | 258 |
| 2 | Surrey | 22 | 10 | 4 | 8 | 51 | 74 | 245 |
| 3 | Nottinghamshire | 22 | 6 | 5 | 11 | 42 | 64 | 178 |
| 4 | Sussex | 22 | 4 | 3 | 15 | 60 | 60 | 168 |
| 5 | Somerset | 21 | 3 | 5 | 13 | 56 | 70 | 168 |
| 6 | Yorkshire | 22 | 4 | 3 | 15 | 51 | 64 | 163 |
| 7 | Gloucestershire | 21 | 4 | 5 | 12 | 39 | 74 | 161 |
| 8 | Essex | 22 | 4 | 3 | 15 | 48 | 64 | 160 |
| 9 | Derbyshire | 20 | 4 | 3 | 13 | 47 | 62 | 157 |
| 10 | Leicestershire | 22 | 4 | 2 | 16 | 45 | 58 | 157 |
| 11 | Worcestershire | 21 | 3 | 7 | 11 | 54 | 61 | 151 |
| 12 | Northamptonshire | 22 | 5 | 4 | 13 | 41 | 47 | 148 |
| 13 | Glamorgan | 21 | 4 | 4 | 13 | 43 | 57 | 148 |
| 14 | Warwickshire | 22 | 3 | 4 | 15 | 55 | 54 | 145 |
| 15 | Lancashire | 20 | 4 | 3 | 13 | 26 | 58 | 132 |
| 16 | Kent | 22 | 2 | 8 | 12 | 36 | 59 | 119 |
| 17 | Hampshire | 22 | 1 | 10 | 11 | 34 | 56 | 102 |