# List of numbered highways in the Northern Mariana Islands

The following is a list of numbered highways in the Northern Mariana Islands.
Rota has numbers beginning with 1, Tinian beginning with 2, and Saipan beginning with 3.

## Rota

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed |
| Hwy. 10 | 9.2 | 14.8 | Hwy. 100 in Songsong | Rota International Airport | — | — |
| Hwy. 11 | 4.6 | 7.4 | Southwest of Sinapalo | Hwy. 10 near Sinapalo | — | — |
| Hwy. 100 | 10.9 | 17.5 | Hwy. 10 in Songsong | Hwy. 10 in Sinapalo | — | — |
| Hwy. 101 | 2.5 | 4.0 | East of Songsong | Hwy. 10 northeast of Songsong | — | — |
| Hwy. 103 | 3.3 | 5.3 | Hwy. 10 at Rota International Airport | Northeast Rota | — | — |

## Tinian

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| Hwy. 20 | 6.63 | 10.67 | Hwy. 201 in San Jose | Hwy. 21 in northern Tinian | — | — | |
| Hwy. 21 | 7.07 | 11.38 | Hwy. 205 in San Jose | Hwy. 203 at Broadway Roundabout south of North Field | — | — | |
| Hwy. 22 | 3.59 | 5.78 | Hwy. 205/Hwy. 207 in San Jose | Hwy. 21 near Tinian International Airport | — | — | |
| Hwy. 23 | 5.04 | 8.11 | Hwy. 25 near Tinian International Airport | Hwy. 25 near North Field | — | — | |
| Hwy. 24 | 3.08 | 4.96 | Hwy. 26 in San Jose | Hwy. 20 in San Jose | — | — | |
| Hwy. 25 | 9.39 | 15.11 | Hwy. 26 in San Jose | Hwy. 203 west of North Field | — | — | |
| Hwy. 26 | 1.23 | 1.98 | Hwy. 24 in San Jose | Hwy. 21 in San Jose | — | — | |
| Hwy. 27 | 4.28 | 6.89 | Suicide Cliff | Hwy 201 in San Jose | — | — | |
| Hwy. 201 | 3.21 | 5.17 | Tinian Harbour | Hwy. 20 in San Jose | — | — | |
| Hwy. 202 | 2.14 | 3.44 | Tinian Harbour | Hwy. 201 in San Jose | — | — | |
| Hwy. 203 | 7.12 | 11.46 | Hwy. 21 at Broadway Roundabout | Hwy. 21 at Broadway Roundabout | — | — | Loop around North Field |
| Hwy. 204 | 3.15 | 5.07 | Hwy. 25 in western Tinian | Hwy. 21 north of San Jose | — | — | |
| Hwy. 205 | 1.82 | 2.93 | Hwy. 21 in San Jose | Hwy. 22/Hwy. 207 in San Jose | — | — | |
| Hwy. 206 | 0.82 | 1.32 | Hwy. 21 in San Jose | Hwy. 205 in San Jose | — | — | |
| Hwy. 207 | 1.86 | 2.99 | Hwy. 27 south of San Jose | Hwy. 22/Hwy. 205 in San Jose | — | — | |
| Hwy. 208 | 1.48 | 2.38 | Hwy. 201 in San Jose | Hwy. 22 in San Jose | — | — | |

## Saipan

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed |
| Hwy. 30 | 13.2 | 21.2 | Hwy. 32 in Chalan PiaoHwy. 313 in Susupe | Dead end in SusupeHwy. 36 in Marpi | — | — |
| Hwy. 31 | 9.8 | 15.8 | Hwy. 33 in Laolao | Hwy. 30 in Puerto Rico | — | — |
| Hwy. 32 | 2.2 | 3.5 | Hwy. 33 in Chalan Piao | Hwy. 35/Hwy. 304 near Saipan International Airport | — | — |
| Hwy. 33 | 7.0 | 11.3 | Hwy. 37/Hwy. 301 near Afetna | Hwy. 38 in Garapan | — | — |
| Hwy. 34 | 2.3 | 3.7 | Lalanghita Road in Kagman | Hwy. 31 near Kagman | — | — |
| Hwy. 35 | 2.4 | 3.9 | Hwy. 32/Hwy. 304 near Saipan International Airport | Hwy. 31 near San Vicente | — | — |
| Hwy. 36 | 5.0 | 8.0 | Hwy. 31 near Capitol HillEnd of pavement near Bird Island | Windward Road near San Juan BeachHwy. 30 in Marpi | — | — |
| Hwy. 37 | 3.3 | 5.3 | Hwy. 33/Hwy. 301 near Afetna | Hwy. 31 near San Vicente | — | — |
| Hwy. 38 | 2.6 | 4.2 | Hwy. 33 in Garapan | Hwy. 310 near Mount Tapochau | — | — |
| Hwy. 301 | 1.1 | 1.8 | Hwy. 33/Hwy. 37 near Afetna | Hwy. 37 near Afetna | — | — |
| Hwy. 302 | 2.3 | 3.7 | Hwy. 304 near Saipan International Airport | Hwy. 304 near Naftan | — | — |
| Hwy. 303 | 1.0 | 1.6 | Hwy. 37 near Afetna | Hwy. 33 in Afetna | — | — |
| Hwy. 304 | 4.9 | 7.9 | Hwy. 37 near Afetna | Hwy. 302 near Naftan | — | — |
| Hwy. 305 | 1.7 | 2.7 | Hwy. 304 in Dandan | Hwy. 31 in San Vicente | — | — |
| Hwy. 306 | 1.3 | 2.1 | Hwy. 30 in Chalan Kanoa | Hwy. 37 near San Vicente | — | — |
| Hwy. 307 | 0.8 | 1.3 | Hwy. 306 near Chalan Kanoa | Hwy. 31 near San Vicente | — | — |
| Hwy. 308 | 1.2 | 1.9 | Hwy. 33 in Garapan | Hwy. 30 in Garapan | — | — |
| Hwy. 309 | 0.3 | 0.48 | Hwy. 33 in Chalan Kanoa | Hwy. 30 in Chalan Kanoa | — | — |
| Hwy. 310 | 1.1 | 1.8 | Mount Tapochau | Hwy. 312 near Capitol Hill | — | — |
| Hwy. 311 | 0.2 | 0.32 | Hwy. 33 in Susupe | Hwy. 30 in Susupe | — | — |
| Hwy. 312 | 0.7 | 1.1 | Hwy. 31 near Capitol Hill | Hwy. 31 in Capitol Hill | — | — |
| Hwy. 313 | 0.2 | 0.32 | Hwy. 33 in Susupe | Hwy. 30 in Susupe | — | — |
| Hwy. 314 | 0.5 | 0.80 | Hwy. 323 in Puerto Rico | Santo Remedio Drive in Puerto Rico | — | — |
| Hwy. 315 | 0.3 | 0.48 | Hwy. 33 in Oleai | Hwy. 30 in Oleai | — | — |
| Hwy. 316 | 0.2 | 0.32 | Hwy. 31 in Capitol Hill | Capitol Hill | — | — |
| Hwy. 317 | 0.6 | 0.97 | Hwy. 33 near Garapan | Gualo Rai Road in Gualo Rai | — | — |
| Hwy. 318 | 1.2 | 1.9 | Chalan Matuas near San Roque | Hwy. 320 near San Roque | — | — |
| Hwy. 320 | 2.2 | 3.5 | Hwy. 30 near San Roque | Hwy. 322 near San Roque | — | — |
| Hwy. 322 | 1.8 | 2.9 | Hwy. 36 near Marpi | Suicide Cliff | — | — |
| Hwy. 323 | 1.0 | 1.6 | Hwy. 30 in Puerto Rico | Hwy. 30 in Puerto Rico | — | — |