41 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 04730 | Houlton | 10,106 |
| 04736 | Caribou | 9,025 |
| 04769 | Presque Isle | 8,736 |
| 04743 | Fort Kent | 4,770 |
| 04756 | Madawaska | 3,341 |
| 04742 | Fort Fairfield | 3,309 |
| 04757 | Mapleton | 2,627 |
| 04785 | Van Buren | 2,073 |
| 04750 | Limestone | 1,815 |
| 04786 | Washburn | 1,599 |
| 04740 | Easton | 1,433 |
| 04732 | Ashland | 1,427 |
| 04758 | Mars Hill | 1,405 |
| 04747 | Island Falls | 1,316 |
| 04776 | Sherman | 999 |
| 04745 | Frenchville | 971 |
| 04772 | Saint Agatha | 842 |
| 04739 | Eagle Lake | 825 |
| 04734 | Blaine | 804 |
| 04780 | Smyrna Mills | 783 |
| 04459 | Mattawamkeag | 750 |
| 04471 | Orient | 730 |
| 04760 | Monticello | 674 |
| 04763 | Oakfield | 629 |
| 04774 | Saint Francis | 624 |
| 04773 | Saint David | 550 |
| 04783 | Stockholm | 545 |
| 04781 | Wallagrass | 528 |
| 04762 | New Sweden | 494 |
| 04735 | Bridgewater | 492 |
| 04733 | Benedicta | 465 |
| 04779 | Sinclair | 446 |
| 04746 | Grand Isle | 407 |
| 04787 | Westfield | 382 |
| 04768 | Portage | 374 |
| 04761 | New Limerick | 372 |
| 04766 | Perham | 326 |
| 04497 | Wytopitlock | 311 |
| 04451 | Kingman | 217 |
| 04764 | Oxbow | 88 |
| 04737 | Clayton Lake | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 41 ZCTAs in Aroostook County, Maine (US Census).