The following table shows all Legislative Assembly electorates to be contested at the 2015 NSW state election, ordered according to two-party-preferred margin.
Two-party-preferred margins courtesy of ABC election analyst Antony Green.
| Coalition Seats | Labor Seats | ||
| Seat | Margin | Seat | Margin |
| East Hills | LIB 0.2% | Cabramatta | ALP 1.9% |
| Swansea | LIB 0.3% | Fairfield | ALP 2.2% |
| Prospect | LIB 1.1% | Maroubra | ALP 2.3% |
| Macquarie Fields | LIB 1.8% | Keira | ALP 2.9% |
| Monaro | NAT 2.0% | Cessnock | ALP 3.9% |
| Newcastle | LIB 2.5% | Blacktown | ALP 4.1% |
| Rockdale | LIB 3.6% | Heffron | ALP 5.2% |
| Oatley | LIB 3.8% | Kogarah | ALP 5.4% |
| Granville | LIB 3.8% | Mount Druitt | ALP 6.0% |
| Wyong | LIB 4.6% | Wallsend | ALP 6.3% |
| Maitland | LIB 4.9% | Auburn | ALP 7.2% |
| Londonderry | LIB 5.3% | Lakemba | ALP 7.3% |
| Blue Mountains | LIB 5.4% | Canterbury | ALP 7.4% |
| Strathfield | LIB 6.4% | Shellharbour | ALP 7.8% |
| Campbelltown | LIB 6.8% | Wollongong | ALP 9.3% |
| Tamworth | NAT 6.8% vs IND | Bankstown | ALP 10.6% |
| Coogee | LIB 8.3% | Summer Hill | ALP 12.7% |
| Kiama | LIB 8.6% | Liverpool | ALP 14.0% |
| Seven Hills | LIB 8.8% | ||
| Charlestown | LIB 9.2% | ||
| Holsworthy | LIB 10.7% | ||
| The Entrance | LIB 11.8% | ||
| Gosford | LIB 11.9% | ||
| Mulgoa | LIB 12.4% | ||
| Parramatta | LIB 12.5% | ||
| Port Stephens | LIB 14.7% | ||
| Penrith | LIB 16.1% | ||
| Drummoyne | LIB 17.1% | ||
| Bega | LIB 18.5% | ||
| Heathcote | LIB 19.0% | ||
| South Coast | LIB 20.1% | ||
| Riverstone | LIB 20.1% | ||
| Wollondilly | LIB 21.6% | ||
| Tweed | NAT 21.7% | ||
| Camden | LIB 22.8% | ||
| Upper Hunter | NAT 23.0% | ||
| Miranda | LIB 23.0% | ||
| Terrigal | LIB 23.6% | ||
| Bathurst | NAT 23.7% | ||
| Lismore | NAT 24.3% | ||
| Ballina | NAT 24.6% | ||
| Cronulla | LIB 24.8% | ||
| Ryde | LIB 25.2% | ||
| Barwon | NAT 25.8% | ||
| Hornsby | LIB 26.5% | ||
| Goulburn | LIB 26.8% | ||
| Albury | LIB 27.1% | ||
| Orange | NAT 27.1% | ||
| Lane Cove | LIB 27.3% | ||
| Coffs Harbour | NAT 27.3% | ||
| Epping | LIB 27.5% | ||
| Northern Tablelands | NAT 27.6% | ||
| Wagga Wagga | LIB 27.8% | ||
| Baulkham Hills | LIB 28.3% | ||
| Hawkesbury | LIB 28.4% | ||
| Oxley | NAT 28.8% | ||
| Myall Lakes | NAT 28.6% | ||
| Port Macquarie | NAT 28.8% | ||
| Cootamundra | NAT 30.3% | ||
| Willoughby | LIB 30.4% | ||
| North Shore | LIB 30.4% | ||
| Wakehurst | LIB 30.5% | ||
| Murray | NAT 30.9% | ||
| Dubbo | NAT 31.3% | ||
| Vaucluse | LIB 31.4% | ||
| Clarence | NAT 31.9% | ||
| Manly | LIB 32.4% | ||
| Pittwater | LIB 34.5% | Sydney | IND 0.3% vs LIB |
| Castle Hill | LIB 34.7% | Balmain | GRN 3.5% vs ALP |
| Davidson | LIB 36.2% | Newtown | GRN 4.4% vs ALP |
| Ku-ring-gai | LIB 36.9% | Lake Macquarie | IND 14.6% vs LIB |