16 Counties — maine
| County | Type | Population | Land area |
|---|
| androscoggin | County | 103,793 | 470 sq mi |
| aroostook | County | 73,938 | 6,672 sq mi |
| cumberland | County | 265,612 | 836 sq mi |
| franklin | County | 29,467 | 1,698 sq mi |
| hancock | County | 51,791 | 1,589 sq mi |
| kennebec | County | 117,114 | 868 sq mi |
| knox | County | 39,618 | 366 sq mi |
| lincoln | County | 33,616 | 456 sq mi |
| oxford | County | 54,755 | 2,078 sq mi |
| penobscot | County | 144,919 | 3,396 sq mi |
| piscataquis | County | 17,235 | 3,967 sq mi |
| sagadahoc | County | 35,214 | 254 sq mi |
| somerset | County | 50,888 | 3,927 sq mi |
| waldo | County | 36,280 | 730 sq mi |
| washington | County | 33,941 | 2,569 sq mi |
| york | County | 186,742 | 991 sq mi |