| Dates | 13 April – 18 September 1999 |
|---|---|
| Administrator | England and Wales Cricket Board |
| Cricket format | First-class cricket |
| Tournament format | League system |
| Champions | Surrey (16th title) |
| Participants | 18 |
| Matches | 153 |
| Most runs | Stuart Law, (Essex) 1,833 |
| Most wickets | Alamgir Sheriyar, (Worcestershire) 86 |
The 1999 PPP Healthcare County Championship was the 100th officially organised running of the Championship.
It was the last County Championship to be run as a single division. The decision was made to split the championship into two divisions, with the top nine teams from the 1999 season to populate the first division in 2020, and the bottom nine teams going into the second division.
The sponsorship by Britannic Assurance came to an end with PPP (Private Patients Plan) Healthcare taking over and Surrey won the Championship.
| Team | P | W | L | D | Bat | Bowl | Pts | |
|---|---|---|---|---|---|---|---|---|
| 1 | Surrey | 17 | 12 | 0 | 5 | 36 | 64 | 264 |
| 2 | Lancashire | 17 | 8 | 4 | 5 | 37 | 55 | 208 |
| 3 | Leicestershire | 17 | 5 | 3 | 9 | 43 | 61 | 200 |
| 4 | Somerset | 17 | 6 | 4 | 7 | 38 | 56 | 194 |
| 5 | Kent | 17 | 6 | 4 | 7 | 34 | 60 | 194 |
| 6 | Yorkshire | 17 | 8 | 6 | 3 | 21 | 64 | 193 |
| 7 | Hampshire | 17 | 5 | 5 | 7 | 45 | 58 | 191 |
| 8 | Durham | 17 | 6 | 7 | 4 | 34 | 66 | 188 |
| 9 | Derbyshire | 17 | 7 | 8 | 2 | 34 | 61 | 187 |
| 10 | Warwickshire | 17 | 6 | 5 | 6 | 35 | 56 | 187 |
| 11 | Sussex | 17 | 6 | 5 | 6 | 29 | 60 | 185 |
| 12 | Essex | 17 | 5 | 7 | 5 | 38 | 63 | 181 |
| 13 | Northamptonshire | 17 | 4 | 7 | 6 | 35 | 64 | 171 |
| 14 | Glamorgan | 17 | 5 | 7 | 5 | 26 | 57 | 163 |
| 15 | Worcestershire | 17 | 4 | 6 | 7 | 18 | 65 | 159 |
| 16 | Middlesex | 17 | 4 | 5 | 8 | 24 | 53 | 157 |
| 17 | Nottinghamshire | 17 | 4 | 11 | 2 | 27 | 57 | 140 |
| 18 | Gloucestershire | 17 | 2 | 9 | 6 | 26 | 62 | 136 |
| = Champions and qualified for First Division in 2000 | |
| = Qualified for First Division in 2000 |