The following table shows all Legislative Assembly electorates to be contested at the 2019 NSW state election, ordered according to two-party-preferred margin.
| Coalition Seats | Labor Seats | ||
| Seat | Margin | Seat | Margin |
| East Hills | LIB 0.4% | Gosford | ALP 0.2% |
| Upper Hunter | NAT 2.2% | The Entrance | ALP 0.4% |
| Monaro | NAT 2.5% | Strathfield | ALP 1.8% |
| Lismore | NAT 2.9% vs GRN | Granville | ALP 2.1% |
| Coogee | LIB 2.9% | Prospect | ALP 3.4% |
| Tweed | NAT 3.2% | Port Stephens | ALP 4.7% |
| Penrith | LIB 6.2% | Rockdale | ALP 4.8% |
| Oatley | LIB 6.6% | Auburn | ALP 5.9% |
| Goulburn | LIB 6.6% | Kogarah | ALP 6.9% |
| Holsworthy | LIB 6.7% | Campbelltown | ALP 7.3% |
| Heathcote | LIB 7.6% | Newcastle | ALP 7.4% |
| Bega | LIB 8.2% | Macquarie Fields | ALP 8.1% |
| Kiama | LIB 8.7% | Blue Mountains | ALP 8.1% |
| Myall Lakes | NAT 8.7% | Wyong | ALP 8.7% |
| Seven Hills | LIB 8.7% | Londonderry | ALP 8.8% |
| Terrigal | LIB 9.0% | Wollongong | ALP 8.9% vs IND |
| South Coast | LIB 9.6% | Summer Hill | ALP 10.5% vs GRN |
| Mulgoa | LIB 9.7% | Maroubra | ALP 10.8% |
| Clarence | NAT 9.7% | Charlestown | ALP 12.9% |
| Tamworth | NAT 10.0% vs IND | Swansea | ALP 13.0% |
| Oxley | NAT 10.9% | Blacktown | ALP 13.2% |
| Ryde | LIB 11.5% | Maitland | ALP 13.8% |
| Riverstone | LIB 12.2% | Bankstown | ALP 14.0% |
| Parramatta | LIB 12.9% | Heffron | ALP 14.1% |
| Barwon | NAT 12.9% | Mount Druitt | ALP 15.4% |
| Miranda | LIB 13.0% | Canterbury | ALP 15.7% |
| Albury | LIB 13.2% | Shellharbour | ALP 17.0% |
| Coffs Harbour | NAT 14.3% | Cabramatta | ALP 17.2% |
| Bathurst | NAT 15.8% | Keira | ALP 17.4% |
| Epping | LIB 16.2% | Fairfield | ALP 17.8% |
| Wollondilly | LIB 17.3% | Wallsend | ALP 20.8% |
| Hawkesbury | LIB 17.8% | Liverpool | ALP 20.9% |
| Lane Cove | LIB 17.8% | Lakemba | ALP 21.6% |
| Camden | LIB 18.3% | Cessnock | ALP 22.0% |
| Drummoyne | LIB 18.8% | ||
| Hornsby | LIB 18.9% | ||
| Port Macquarie | NAT 19.0% | ||
| Cootamundra | NAT 20.4% | ||
| Dubbo | NAT 20.4% | ||
| Cronulla | LIB 20.9% | ||
| North Shore | LIB 21.2% vs GRN | ||
| Baulkham Hills | LIB 21.8% | ||
| Murray | NAT 22.7% vs IND | ||
| Vaucluse | LIB 22.9% vs GRN | ||
| Ku-ring-gai | LIB 23.0% | ||
| Willoughby | LIB 24.5% vs GRN | Orange | SFF 0.1% vs NAT |
| Manly | LIB 24.5% vs GRN | Ballina | GRN 3.1% vs NAT |
| Wakehurst | LIB 25.2% | Balmain | GRN 4.7% vs ALP |
| Pittwater | LIB 25.7% vs GRN | Sydney | IND 8.1% vs LIB |
| Northern Tablelands | NAT 27.1% | Newtown | GRN 9.3% vs ALP |
| Davidson | LIB 28.8% vs GRN | Wagga Wagga | IND 9.6% vs LIB |
| Castle Hill | LIB 29.4% | Lake Macquarie | IND 10.7% vs ALP |