| Rank | County | Percentage of Seniors |
|---|---|---|
| 1 | Lincoln County, Maine | 23.6% |
| 2 | Piscataquis County, Maine | 21.9% |
| 3 | Washington County, Maine | 20.8% |
| 4 | Knox County, Maine | 20.8% |
| 5 | Aroostook County, Maine | 20.0% |
| 6 | Hancock County, Maine | 19.8% |
| 7 | Oxford County, Maine | 18.1% |
| 8 | Franklin County, Maine | 17.9% |
| 9 | Sagadahoc County, Maine | 17.8% |
| 10 | Waldo County, Maine | 17.7% |
| 11 | Somerset County, Maine | 17.5% |
| 12 | York County, Maine | 16.6% |
| 13 | Kennebec County, Maine | 16.5% |
| 14 | Penobscot County, Maine | 15.4% |
| 15 | Cumberland County, Maine | 15.3% |
| 16 | Androscoggin County, Maine | 14.9% |
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