The following table shows all Legislative Assembly electorates to be contested at the 2027 NSW state election, ordered according to two-candidate-preferred margin.
| Labor Seats | Coalition Seats | ||
| Seat | Margin | Seat | Margin |
| Penrith | ALP 1.6% | Ryde | LIB 0.1% |
| East Hills | ALP 1.7% | Holsworthy | LIB 0.4% |
| Monaro | ALP 2.3% | Oatley | LIB 0.8% |
| Camden | ALP 3.0% | Terrigal | LIB 1.2% |
| Riverstone | ALP 3.7% | Goulburn | LIB 1.3% |
| South Coast | ALP 3.8% | Drummoyne | LIB 1.3% |
| The Entrance | ALP 7.8% | Winston Hills | LIB 1.8% |
| Liverpool | ALP 8.3% | Miranda | LIB 2.3% |
| Parramatta | ALP 8.6% | Willoughby | LIB 2.6% vs IND |
| Prospect | ALP 8.7% | Tweed | NAT 3.6% |
| Leppington | ALP 8.9% | Upper Hunter | NAT 3.8% |
| Heathcote | ALP 9.9% | Epping | LIB 4.8% |
| Kiama | ALP 10.2% | Manly | LIB 4.8% vs IND |
| Bega | ALP 10.4% | Lane Cove | LIB 5.5% |
| Cabramatta | ALP 11.8% | North Shore | LIB 5.7% vs IND |
| Coogee | ALP 12.3% | Hornsby | LIB 8.0% |
| Strathfield | ALP 13.0% | Hawkesbury | LIB 9.8% |
| Londonderry | ALP 13.7% | Badgerys Creek | LIB 10.5% |
| Lismore | ALP 15.0% | Wahroonga | LIB 10.6% |
| Rockdale | ALP 15.4% | Port Macquarie | LIB 10.8% |
| Gosford | ALP 15.4% | Castle Hill | LIB 10.9% |
| Swansea | ALP 15.4% | Kellyville | LIB 11.0% |
| Summer Hill | ALP 16.3% vs GRN | Oxley | NAT 12.8% |
| Shellharbour | ALP 17.1% vs IND | Vaucluse | LIB 12.9% vs IND |
| Kogarah | ALP 18.3% | Coffs Harbour | NAT 13.2% |
| Maitland | ALP 18.6% | Cronulla | LIB 13.8% |
| Maroubra | ALP 18.7% | Davidson | LIB 13.9% |
| Port Stephens | ALP 19.0% | Clarence | NAT 14.3% |
| Blacktown | ALP 19.1% | Tamworth | NAT 15.8% vs IND |
| Wyong | ALP 19.8% | Myall Lakes | NAT 15.8% |
| Macquarie Fields | ALP 19.9% | Albury | LIB 16.3% |
| Bankstown | ALP 20.3% | Dubbo | NAT 18.6% |
| Fairfield | ALP 20.9% | Bathurst | NAT 23.6% |
| Charlestown | ALP 21.1% | Cootamundra | NAT 32.1% |
| Granville | ALP 21.5% | Northern Tablelands | NAT 33.8% |
| Blue Mountains | ALP 21.9% | ||
| Mount Druitt | ALP 22.4% | Wollondilly | IND 1.5% vs LIB |
| Newcastle | ALP 22.6% | Balmain | GRN 1.8% vs ALP |
| Heffron | ALP 23.3% | Wakehurst | IND 4.5% vs LIB |
| Campbelltown | ALP 23.3% | Pittwater | IND 5.9% vs LIB |
| Cessnock | ALP 23.4% vs ON | Ballina | GRN 7.7% vs NAT |
| Auburn | ALP 24.0% | Newtown | GRN 12.1% vs ALP |
| Keira | ALP 24.2% | Sydney | IND 15.6% vs ALP |
| Wollongong | ALP 24.3% | Barwon | IND 16.0% vs NAT |
| Canterbury | ALP 25.8% | Murray | IND 16.0% vs NAT |
| Wallsend | ALP 31.8% | Orange | IND 21.9% vs NAT |
| Wagga Wagga | IND 22.4% vs NAT | ||
| Lake Macquarie | IND 24.1% vs ALP | ||