| Belton Park The National Trust | 502.43 ha | | — |
| Deeping Lakes Lincolnshire Wildlife Trust | 80.25 ha | | — |
| Deeping Lakes Nature Reserve Lincolnshire Wildlife Trust | 76.4 ha | | — |
| Uffington Park | 65.09 ha | | — |
| Casewick Park | 36.06 ha | | — |
| Baston Fen Nature Reserve | 14.74 ha | | — |
| Well Head Fields | 13.27 ha | | — |
| Penfield Nature Reserve Langtoft Parish Council | 7.75 ha | | — |
| Wyndham Park | 6.03 ha | | — |
| John Eve Park Playing Field | 4.48 ha | | — |
| Caythorpe Court | 4.23 ha | | — |
| Dysart Park | 3.12 ha | | — |
| Lawrance Park | 2.84 ha | | — |
| Recreational Road Park | 2.83 ha | | — |
| Jubilee Green | 2.55 ha | | — |
| Town Meadows | 2.45 ha | | — |
| Jubilee Park | 2.32 ha | | — |
| Hills and Hollows | 2.15 ha | | — |
| Glebe Park | 2.07 ha | | — |
| Caythorpe Playing Field | 1.98 ha | | — |
| Claypole Community Park | 1.32 ha | | — |
| Sandringham Way Play Area | 1.17 ha | | — |
| Cookes Field | 1.06 ha | | — |
| Marston Hall | 0.97 ha | | — |
| Alexandra Road Play Area SKDC | 0.95 ha | | — |
| The Paddock | 0.89 ha | | — |
| Woolsthorpe Manor National Trust | 0.78 ha | | — |
| Greenlands | 0.65 ha | | — |
| Rectory Paddock | 0.6 ha | | — |
| Wyndham Park | 0.59 ha | | — |
| Charter Avenue Playground | 0.48 ha | | — |
| Woolsthorpe Line Nature Reserve | 0.43 ha | | — |
| Maxey Close Play Area | 0.41 ha | | — |
| Fraser Close Play Area | 0.31 ha | | — |
| Hereward Way Play Area | 0.3 ha | | — |
| Burchnell Close Play Area | 0.25 ha | | — |
| Windsor Gardens Park | 0.21 ha | | — |
| Rose Meadow | 0.18 ha | | — |
| Welland Gardens | 0.18 ha | | — |
| Little Garth | 0.17 ha | | — |
| Rose Meadow | 0.17 ha | | — |
| Frieston Green | 0.15 ha | | — |
| Knight Close Park | 0.15 ha | | — |
| Riverside Park | 0.15 ha | | — |
| Robin Close Park | 0.14 ha | | — |
| Eager Farm Roadside Nature Reserve | 0.13 ha | | — |
| St Peter's Square | 0.11 ha | | — |
| Cottage Garden | 0.09 ha | | — |
| Lady Margarets Play Area | 0.09 ha | | — |
| The Green | 0.07 ha | | — |
| White Space Garden | 0.06 ha | | — |
| Alpine Beds | 0.05 ha | | — |
| The Pickery | 0.05 ha | | — |
| Thurlby Fen Slipe Nature Reserve Lincolnshire Wildlife Trust | — | | — |