| # | City | Population | Type |
|---|---|---|---|
| 1 | Portland | 69,568 | City |
| 2 | Lewiston | 38,772 | City |
| 3 | Bangor | 32,446 | City |
| 4 | South Portland | 26,994 | City |
| 5 | Auburn | 25,200 | City |
| 6 | Sanford | 22,497 | City |
| 7 | Biddeford | 22,370 | City |
| 8 | Westbrook | 21,386 | City |
| 9 | Saco | 21,064 | City |
| 10 | Augusta | 19,168 | City |