The following table shows all Legislative Assembly electorates to be contested at the 2020 Northern Territory election, ordered according to two-party-preferred margin.
| Labor Seats | Opposition Seats | ||
| Seat | Margin | Seat | Margin |
| Karama | ALP 0.3% vs IND | Namatjira | CLP 0.6% vs ALP |
| Katherine | ALP 1.5% vs CLP | Daly | CLP 1.3% vs ALP |
| Port Darwin | ALP 2.8% vs CLP | Spillett | CLP 15.4% vs ALP |
| Brennan | ALP 2.8% vs CLP | ||
| Braitling | ALP 3.0% vs CLP | ||
| Drysdale | ALP 5.2% vs CLP | ||
| Fong Lim | ALP 6.4% vs CLP | ||
| Arafura | ALP 7.1% vs CLP | ||
| Barkly | ALP 10.5% vs IND | ||
| Sanderson | ALP 10.5% vs CLP | ||
| Arnhem | ALP 10.7% vs CLP | ||
| Casuarina | ALP 11.7% vs CLP | ||
| Fannie Bay | ALP 12.5% vs CLP | Mulka | IND 0.1% vs ALP |
| Johnston | ALP 15.5% vs CLP | Blain | TA 1.4% vs ALP |
| Wanguri | ALP 19.9% vs CLP | Araluen | TA 8.1% vs CLP |
| Gwoja | ALP 23.4% vs CLP | Nelson | IND 23.0% vs CLP |
| Nightcliff | ALP 26.4% vs CLP | Goyder | IND 25.3% vs CLP |