| Burghley Park | 496.91 ha | | — |
| Bedford Purlieus National Nature Reserve Forest Enterprise | 210.06 ha | | — |
| Milton Park | 202.09 ha | | — |
| Ferry Meadows | 181.34 ha | | — |
| Castor Hanglands NNR | 99.74 ha | | — |
| Thorpe Meadows | 99.41 ha | | — |
| Orton Meadows | 90.78 ha | | — |
| Thorpe Park | 42.25 ha | | — |
| Star Pit Nature Reserve | 38.41 ha | | — |
| Crown Lakes | 36.42 ha | | — |
| Etton-Maxey Pits | 31.13 ha | | — |
| Bretton Park | 25.25 ha | | — |
| Hills and Holes NNR Natural England | 23.13 ha | | — |
| Swaddywell Pit Nature Reserve Langdyke Counrtryside Trust | 14.54 ha | | — |
| Embankment | 13.7 ha | | — |
| Eye Green Local Nature Reserve | 12.04 ha | | — |
| Christ’s College Pits Reserve Langdyke Trust | 9.21 ha | | — |
| Central Park | 8.91 ha | | — |
| Serpentine Lake | 8.72 ha | | — |
| Woodfield Park | 8.56 ha | | — |
| Walcot Hall | 8.48 ha | | — |
| James' Pond | 8.08 ha | | — |
| Woodston Reach | 7.77 ha | | — |
| Thorpe Wood Nature Reserve | 7.1 ha | | — |
| Orton Mere | 7.0 ha | | — |
| Vergette Wood Meadow Langdyke Trust | 5.61 ha | | — |
| Crematorium | 5.12 ha | | — |
| Baker Perkins Park | 4.73 ha | | — |
| Itter Park | 4.26 ha | | — |
| Happy Hollows | 3.28 ha | | — |
| Etton High Meadow Langdyke Trust | 3.09 ha | | — |
| Queen Elizabeth Field Fields in Trust | 2.51 ha | | — |
| Sunset Lake | 2.06 ha | | — |
| Rock Park | 1.85 ha | | — |
| Bishop's Park | 1.54 ha | | — |
| St.John's Park | 1.05 ha | | — |
| Bishop's Gardens Peterborough City Council | 0.78 ha | | — |