| County | Rank | Change (2020) ↓ | 2026 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Grand Isle County | 1 | 4% | 7,566 | 7,275 |
| Essex County | 2 | 3.46% | 6,125 | 5,920 |
| Orange County | 3 | 3.4% | 30,290 | 29,295 |
| Addison County | 4 | 2.72% | 38,369 | 37,354 |
| Franklin County | 5 | 2.69% | 51,394 | 50,049 |
| Chittenden County | 6 | 2.35% | 172,369 | 168,419 |
| Orleans County | 7 | 1.4% | 27,784 | 27,401 |
| Lamoille County | 8 | 1.36% | 26,278 | 25,925 |
| Caledonia County | 9 | 0.6% | 30,359 | 30,179 |
| Rutland County | 10 | -1.01% | 59,856 | 60,464 |
| Washington County | 11 | -1.26% | 59,016 | 59,770 |
| Windsor County | 12 | -1.28% | 56,999 | 57,736 |
| Bennington County | 13 | -1.51% | 36,747 | 37,312 |
| Windham County | 14 | -2.11% | 44,911 | 45,878 |
Vermont's counties show varied growth patterns from 2020 to 2026. Grand Isle County leads with 0.66% annualized growth, followed by Essex County (0.57%) and Orange County (0.56%). The largest counties are Chittenden County (172,369), Rutland County (59,856), and Washington County (59,016). Of the 14 counties in Vermont, 9 are growing while 5 have experienced population decline. Overall, counties averaged 0.17% annualized growth, with total population growing by 0.13% annually.
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