| County | Rank | Change (2020) ↓ | 2025 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Grand Isle County | 1 | 3.74% | 7,547 | 7,275 |
| Orange County | 2 | 2.99% | 30,170 | 29,295 |
| Essex County | 3 | 2.72% | 6,081 | 5,920 |
| Franklin County | 4 | 2.36% | 51,230 | 50,049 |
| Addison County | 5 | 2.29% | 38,208 | 37,354 |
| Chittenden County | 6 | 1.89% | 171,610 | 168,419 |
| Lamoille County | 7 | 1.3% | 26,263 | 25,925 |
| Orleans County | 8 | 1.29% | 27,755 | 27,401 |
| Caledonia County | 9 | 0.89% | 30,447 | 30,179 |
| Washington County | 10 | -0.57% | 59,430 | 59,770 |
| Windsor County | 11 | -0.67% | 57,348 | 57,736 |
| Rutland County | 12 | -0.72% | 60,027 | 60,464 |
| Bennington County | 13 | -1.12% | 36,893 | 37,312 |
| Windham County | 14 | -1.33% | 45,269 | 45,878 |
Vermont's counties show varied growth patterns from 2020 to 2025. Grand Isle County leads with 3.74% annualized growth, followed by Orange County (2.99%) and Essex County (2.72%). The largest counties are Chittenden County (171,610), Rutland County (60,027), and Washington County (59,430). Of the 14 counties in Vermont, 9 are growing while 5 have experienced population decline. Overall, counties averaged 1.08% annualized growth, with total population growing by 0.82% annually.
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