Founded in 1839, Aroostook County is one of 16 counties in the state of Maine. Historically, Aroostook County was formed from parts of Penobscot County, and Washington County. The city of Houlton is the county seat. With FIPS code of 3, Aroostook County has a population of 66,859 and area of 6,829 square miles (17,687 km2).
List of all cities in Aroostook County, ME alphabetically
| City/Town | Postal Code | Area Code |
| Allagash, ME | 04774 | 207 |
| Amity, ME | 04471 | 207 |
| Ashland, ME | 04732 | 207 |
| 04737 | 207 | |
| Bancroft, ME | 04497 | 207 |
| Benedicta, ME | 04733 | 207 |
| Blaine, ME | 04734 | 207 |
| Bridgewater, ME | 04735 | 207 |
| Caribou, ME | 04736 | 207 |
| Cary Plt, ME | 04471 | 207 |
| Castle Hill, ME | 04757 | 207 |
| Caswell, ME | 04750 | 207 |
| Chapman, ME | 04757 | 207 |
| Clayton Lake, ME | 04737 | 207 |
| Connor Township, ME | 04736 | 207 |
| Cross Lake Township, ME | 04779 | 207 |
| Crouseville, ME | 04738 | 207 |
| Crystal, ME | 04747 | 207 |
| Cyr Plt, ME | 04785 | 207 |
| Drew Plt, ME | 04497 | 207 |
| Dyer Brook, ME | 04747 | 207 |
| Eagle Lake, ME | 04739 | 207 |
| Easton, ME | 04740 | 207 |
| Estcourt Station, ME | 04741 | 207 |
| Fort Fairfield, ME | 04742 | 207 |
| Fort Kent, ME | 04741 | 207 |
| 04743 | 207 | |
| Fort Kent Mills, ME | 04744 | 207 |
| Frenchville, ME | 04745 | 207 |
| Garfield Plt, ME | 04732 | 207 |
| Glenwood Plt, ME | 04497 | 207 |
| Grand Isle, ME | 04746 | 207 |
| Hamlin, ME | 04785 | 207 |
| Hammond, ME | 04730 | 207 |
| Haynesville, ME | 04497 | 207 |
| Hersey, ME | 04780 | 207 |
| Hodgdon, ME | 04730 | 207 |
| Houlton, ME | 04730 | 207 |
| 04761 | 207 | |
| Island Falls, ME | 04747 | 207 |
| Lille, ME | 04746 | 207 |
| Limestone, ME | 04750 | 207 |
| 04751 | 207 | |
| Linneus, ME | 04730 | 207 |
| Littleton, ME | 04730 | 207 |
| Loring Cm Center, ME | 04750 | 207 |
| Ludlow, ME | 04730 | 207 |
| Madawaska, ME | 04756 | 207 |
| Mapleton, ME | 04757 | 207 |
| Mars Hill, ME | 04758 | 207 |
| Masardis, ME | 04732 | 207 |
| Merrill, ME | 04780 | 207 |
| Monticello, ME | 04760 | 207 |
| Moro Plt, ME | 04780 | 207 |
| Nashville Plt, ME | 04732 | 207 |
| New Canada, ME | 04743 | 207 |
| New Limerick, ME | 04761 | 207 |
| New Sweden, ME | 04762 | 207 |
| North Amity, ME | 04471 | 207 |
| Oakfield, ME | 04763 | 207 |
| Orient, ME | 04471 | 207 |
| Oxbow, ME | 04764 | 207 |
| Perham, ME | 04766 | 207 |
| Portage, ME | 04768 | 207 |
| Portage Lake, ME | 04768 | 207 |
| Presque Isle, ME | 04769 | 207 |
| Quimby, ME | 04739 | 207 |
| Reed Plt, ME | 04497 | 207 |
| Saint Agatha, ME | 04772 | 207 |
| Saint David, ME | 04773 | 207 |
| Saint Francis, ME | 04774 | 207 |
| Saint John Plt, ME | 04743 | 207 |
| Sheridan, ME | 04775 | 207 |
| Sherman, ME | 04776 | 207 |
| Sherman Mills, ME | 04776 | 207 |
| Silver Ridge, ME | 04776 | 207 |
| Silver Ridge Township, ME | 04776 | 207 |
| Sinclair, ME | 04779 | 207 |
| Smyrna Mills, ME | 04780 | 207 |
| Soldier Pond, ME | 04781 | 207 |
| Stockholm, ME | 04783 | 207 |
| Upper Frenchville, ME | 04745 | 207 |
| Upper Frnchvl, ME | 04745 | 207 |
| Van Buren, ME | 04785 | 207 |
| Wade, ME | 04786 | 207 |
| Wallagrass, ME | 04781 | 207 |
| Washburn, ME | 04786 | 207 |
| Westfield, ME | 04787 | 207 |
| Westmanland, ME | 04783 | 207 |
| Winterville Plt, ME | 04739 | 207 |
| Woodland, ME | 04736 | 207 |
| Wytopitlock, ME | 04497 | 207 |