| population | |
| Portland | 592 |
| Portland City Hall |
 | Grand Forks Air Force Base | ~ 51.41 km |
| Grand Forks International Airport | ~ 52.08 km |
| Crookston Municipal Kirkwood Field | ~ 67.71 km |
| Hector International Airport | ~ 76.73 km |
| Thief River Falls Regional Airport | ~ 108.61 km |
| Jamestown Regional Airport | ~ 117.41 km |
| Devils Lake Regional Airport | ~ 133.76 km |
| Detroit Lakes Airport - Wething Field | ~ 134.90 km |
| Harry Stern Airport | ~ 151.11 km |
