| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Grand Isle | 1 | 2,182 | 2,080 | 0.46% | 133 | 16 | Town |
| Alburgh | 2 | 2,139 | 2,102 | -0.37% | 74 | 29 | Town |
| South Hero | 3 | 1,732 | 1,668 | 0.35% | 116 | 15 | Town |
| North Hero | 4 | 969 | 942 | -0.1% | 72 | 13 | Town |
| Alburgh | 5 | 609 | 594 | 0.5% | 955 | 1 | Village |
| Isle La Motte | 6 | 494 | 485 | -0.4% | 63 | 8 | Town |
Grand Isle is the largest city in Grand Isle County, with a population of 2,182.
Isle La Motte is the smallest city in Grand Isle County, with a population of 494.
There are 6 cities in Grand Isle County, Vermont.