There are 35 endangered populations in NSW.
| Scientific name | Common name | Type of species | Level of threat |
|---|
| Acacia prominens - endangered population | Acacia prominens (Gosford wattle) population in the Hurstville and Kogarah LGAs | Plant > Endangered Populations | Endangered Population |
| Adelotus brevis - endangered population | Tusked Frog population in the Nandewar and New England Tablelands Bioregions | Animal > Endangered Populations | Endangered Population |
| Callitris endlicheri, Woronora Plateau population | Black Cypress Pine, Woronora Plateau population | Plant > Endangered Populations | Endangered Population |
| Callocephalon fimbriatum population in the Hornsby and Ku-ring-gai Local Government Areas | Gang-gang Cockatoo population in the Hornsby and Ku-ring-gai LGAs | Animal > Endangered Populations | Endangered Population |
| Calyptorhynchus lathami - endangered population | Glossy Black-cockatoo population in the Riverina | Animal > Endangered Populations | Endangered Population |
| Chorizema parviflorum Benth. (a shrub) population, Wollongong and Shellharbour local government areas | Chorizema parviflorum Benth. (a shrub) population, Wollongong and Shellharbour local government areas | Plant > Endangered Populations | Endangered Population |
| Climacteris affinis - endangered population | White-browed Treecreeper population in the Carrathool LGA south of the Lachlan River and Griffith LGA | Animal > Endangered Populations | Endangered Population |
| Darwinia fascicularis subsp. Oligantha - endangered population | Darwinia fascicularis subsp. oligantha population in the Baulkham Hills and Hornsby LGAs | Plant > Endangered Populations | Endangered Population |
| Dillwynia tenuifolia - endangered population Baulkham Hills | Dillwynia tenuifolia (a shrub) population in the Baulkham Hills LGA | Plant > Endangered Populations | Endangered Population |
| Dillwynia tenuifolia - endangered population Kemps Creek | Dillwynia tenuifolia (a shrub) population at Kemps Creek | Plant > Endangered Populations | Endangered Population |
| Dromaius novaehollandiae - endangered population | Emu population in the NSW North Coast Bioregion and Port Stephens LGA | Animal > Endangered Populations | Endangered Population |
| Eucalyptus camaldulensis | River Red Gum population in the Hunter Catchment | Plant > Endangered Populations | Endangered Population |
| Eucalyptus oblonga - endangered population | Eucalyptus oblonga (Narrow-leaved Stringybark) population at Bateau Bay | Plant > Endangered Populations | Endangered Population |
| Eucalyptus parramattensis subsp. parramattensis - endangered population | Eucalyptus parramattensis subsp. parramattensis population in the Wyong and Lake Macquarie LGAs | Plant > Endangered Populations | Endangered Population |
| Eucalyptus seeana - endangered population | Narrow-leaved Red Gum population in the Greater Taree LGA | Plant > Endangered Populations | Endangered Population |
| Eudyptula minor population - endangered population | Little Penguin population in the Manly point area | Animal > Endangered Populations | Endangered Population |
| Glycine clandestina - endangered population | Nambucca Glycine population in the Nambucca LGA | Plant > Endangered Populations | Endangered Population |
| Keraudrenia corrolata var. denticulata - endangered population | Keraudrenia corrolata var. denticulata population in the Hawkesbury LGA | Plant > Endangered Populations | Endangered Population |
| Lespedeza juncea subsp. sericea - endangered population | Lespedeza juncea subsp. sericea population in the Wollongong LGA | Plant > Endangered Populations | Endangered Population |
| Long-nosed potoroo - endangered population | Long-nosed potoroo population at Cobaki Lakes and Tweed Heads West | Animal > Endangered Populations | Endangered Population |
| Marsdenia viridiflora subsp. viridiflora - endangered population | Marsdenia viridiflora subsp. viridiflora in the Bankstown, Blacktown, Camden, Campbelltown, Fairfield, Holroyd, Liverpool and Penrith local government areas | Plant > Endangered Populations | Endangered Population |
| Mastacomys fuscus - endangered population | Broad-toothed Rat at Barrington Tops in the Gloucester, Scone and Dungog LGAs | Animal > Endangered Populations | Endangered Population |
| Menippus fugitivus - endangered population | Menippus fugitivus (a beetle) population in the Sutherland Shire | Animal > Endangered Populations | Endangered Population |
| Perameles nasuta population - endangered population | Long-nosed Bandicoot population at North Head | Animal > Endangered Populations | Endangered Population |
| Petaurides volans - endangered population | Greater Glider population in the Bingi-Congo area of the Eurobodalla LGA | Animal > Endangered Populations | Endangered Population |
| Petaurus norfolcensis - endangered population Barrenjoey Peninsula | Squirrel Glider population on the Barrenjoey Peninsula, north of Bushrangers Hill | Animal > Endangered Populations | Endangered Population |
| Petaurus norfolcensis - endangered population Wagga Wagga | Squirrel Glider population in the Wagga Wagga LGA | Animal > Endangered Populations | Endangered Population |
| Phascolarctos cinereus - endangered population Hawks Nest and Tea Gardens | Koala population in the Hawks Nest and Tea Gardens area | Animal > Endangered Populations | Endangered Population |
| Phascolarctos cinereus - endangered population Pittwater | Koala population in the Pittwater LGA | Animal > Endangered Populations | Endangered Population |
| Pomaderris prunifolia - endangered population | Pomaderris prunifolia (a shrub) population in the Parramatta, Auburn, Strathfield and Bankstown LGAs | Plant > Endangered Populations | Endangered Population |
| Prostanthera spinosa | Spiny Mint-bush | Animal > Endangered Populations | Vulnerable |
| Pultenaea villifera - endangered population | Pultenaea villifera population in the Blue Mountains LGA | Plant > Endangered Populations | Endangered Population |
| Wahlenbergia multicaulis - endangered population | Tadgell's Bluebell population in the Auburn, Bankstown, Baulkham Hills, Canterbury, Hornsby, Parramatta and Strathfield LGAs | Plant > Endangered Populations | Endangered Population |
| Weeping Myall population in the Hunter catchment | Weeping Myall population in the Hunter catchment | Plant > Endangered Populations | Endangered Population |
| Zieria smithii - endangered population | Zieria smithii population at Diggers Head | Plant > Endangered Populations | Endangered Population |