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