| RSPB Leighton Moss Royal Society for the Protection of Birds | 131.93 ha | | — |
| Warton Crag | 85.4 ha | | — |
| Middleton Nature Reserve Lancashire Wildlife Trust | 45.4 ha | | — |
| Heysham Moss | 23.09 ha | | — |
| Williamson Park | 21.95 ha | | — |
| Fairfield Nature Reserve | 20.31 ha | | — |
| Ryelands Park | 18.9 ha | | — |
| Heysham Nature Reserve The Wildlife Trust for Lancashire, Manchester and North Merseyside | 17.19 ha | | — |
| Trowbarrow Quarry | 15.87 ha | | — |
| Freeman's Woods | 14.4 ha | | — |
| Middleton Nature Reserve Lancashire Wildlife Trust | 13.7 ha | | — |
| Myer's Allotments Butterfly Conservation | 7.06 ha | | — |
| Quay Meadow | 6.81 ha | | — |
| Jack Scout National Trust | 5.5 ha | | — |
| Happy Mount Park | 5.07 ha | | — |
| Greaves Park | 3.99 ha | | — |
| Barton Road Playing Field | 3.56 ha | | — |
| Royal Albert Playing Fields | 3.47 ha | | — |
| Sunny Slopes | 3.4 ha | | — |
| Coronation Field | 2.84 ha | | — |
| Hermitage Field | 2.84 ha | | — |
| Highfield Recreation Ground The Gregson Community Association | 2.66 ha | 🐕 | — |
| Whalley Playing Field | 2.39 ha | | — |
| Regent Park | 2.08 ha | | — |
| Lancaster Moor | 1.48 ha | | — |
| Lambert's meadow National Trust | 1.28 ha | | — |
| Green Ayre | 1.22 ha | | — |
| Ryelands Nature Reserve Ryelands Primary School | 1.18 ha | | — |
| Fork to Fork Forest Garden | 1.09 ha | | — |
| Crag Bank Park | 0.95 ha | | — |
| West End Gardens | 0.86 ha | | — |
| Hall Park | 0.68 ha | | — |
| The Rec Ellel Parish Council | 0.41 ha | | — |
| Dallas Road Gardens | 0.36 ha | | — |
| Storey Gardens Friends of the Storey Gardens | 0.36 ha | | — |
| De Vitre Community Gardens North Lancashire Community Land Trust | 0.33 ha | | — |
| Douglas Park | 0.33 ha | | — |
| Friends of Williamson Park Garden | 0.21 ha | | — |
| Ecohub Forest Garden Edible Campus | 0.2 ha | | — |
| Dalton Square | 0.18 ha | | — |
| Poulton Hall Park | 0.17 ha | | — |
| Over Kellet Pond The Lancashire Wildlife Trust | 0.16 ha | | — |
| Torrisholme Park | 0.16 ha | | — |
| Greaves Forage Garden | 0.12 ha | | — |
| Glebe Garden | 0.11 ha | | — |
| Memorial Garden | 0.1 ha | | — |
| Aldcliffe Road Triangle Fairfield Association | 0.08 ha | | — |
| Off-River Spawning Unit | 0.08 ha | | — |
| Physics Garden | 0.02 ha | | — |
| Scotch Quarry Village Green Scotch Quarry Community Garden | 0.02 ha | | — |
| Heysham Eco Coastal and Sensory Garden | 0.01 ha | | — |