| Annual Estimates of the Population for Counties of Maine: April 1, 2000 to July 1, 2006 | |||||||||
| Geographic Area | Population Estimates | April 1, 2000 | |||||||
| July 1, 2006 | July 1, 2005 | July 1, 2004 | July 1, 2003 | July 1, 2002 | July 1, 2001 | July 1, 2000 | Estimates Base | Census | |
| Maine | 1,321,574 | 1,318,220 | 1,313,921 | 1,307,151 | 1,296,817 | 1,286,419 | 1,277,483 | 1,274,923 | 1,274,923 |
| Androscoggin County | 107,552 | 107,061 | 106,833 | 105,961 | 105,172 | 104,268 | 103,876 | 103,793 | 103,793 |
| Aroostook County | 73,008 | 73,030 | 73,159 | 73,121 | 73,119 | 73,123 | 73,908 | 73,938 | 73,938 |
| Cumberland County | 274,598 | 274,194 | 273,433 | 271,887 | 269,757 | 267,932 | 266,014 | 265,612 | 265,612 |
| Franklin County | 30,017 | 29,861 | 29,830 | 29,754 | 29,850 | 29,599 | 29,488 | 29,467 | 29,467 |
| Hancock County | 53,797 | 53,613 | 53,440 | 52,889 | 52,216 | 52,005 | 51,875 | 51,791 | 51,791 |
| Kennebec County | 121,068 | 120,782 | 120,127 | 119,470 | 118,653 | 118,022 | 117,232 | 117,114 | 117,114 |
| Knox County | 41,096 | 41,088 | 40,979 | 40,741 | 40,495 | 39,978 | 39,698 | 39,618 | 39,618 |
| Lincoln County | 35,234 | 35,200 | 35,102 | 34,769 | 34,456 | 34,133 | 33,709 | 33,616 | 33,616 |
| Oxford County | 57,118 | 56,766 | 56,392 | 55,962 | 55,805 | 55,238 | 54,828 | 54,755 | 54,755 |
| Penobscot County | 147,180 | 146,817 | 146,603 | 147,125 | 146,232 | 145,627 | 144,891 | 144,919 | 144,919 |
| Piscataquis County | 17,585 | 17,596 | 17,528 | 17,402 | 17,247 | 17,188 | 17,267 | 17,235 | 17,235 |
| Sagadahoc County | 36,837 | 36,734 | 36,892 | 36,925 | 35,968 | 35,631 | 35,237 | 35,214 | 35,214 |
| Somerset County | 52,249 | 51,649 | 51,412 | 51,297 | 51,020 | 50,942 | 50,931 | 50,888 | 50,888 |
| Waldo County | 38,715 | 38,527 | 38,344 | 38,130 | 37,700 | 37,097 | 36,491 | 36,280 | 36,280 |
| Washington County | 33,288 | 33,238 | 33,435 | 33,474 | 33,404 | 33,533 | 33,907 | 33,941 | 33,941 |
| York County | 202,232 | 202,064 | 200,412 | 198,244 | 195,723 | 192,103 | 188,131 | 186,742 | 186,742 |
Source: Population Division, U.S. Census Bureau