| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Morristown | 1 | 6,200 | 5,440 | 1.16% | 122 | 51 | Town |
| Stowe | 2 | 5,386 | 5,231 | 1.15% | 74 | 72 | Town |
| Johnson | 3 | 3,364 | 3,482 | -0.15% | 74 | 45 | Town |
| Hyde Park | 4 | 2,969 | 3,007 | 0.37% | 79 | 38 | Town |
| Morrisville | 5 | 2,463 | 2,139 | 2.45% | 1,259 | 2 | Village |
| Wolcott | 6 | 1,683 | 1,669 | 0.66% | 43 | 39 | Town |
| Johnson | 7 | 1,318 | 1,360 | -0.6% | 1,129 | 1 | Village |
| Eden | 8 | 1,289 | 1,345 | -0.15% | 20 | 63 | Town |
| Elmore | 9 | 882 | 880 | 0.68% | 23 | 39 | Town |
| Jeffersonville | 10 | 738 | 781 | -1.2% | 951 | 1 | Village |
| Waterville | 11 | 663 | 692 | -0.15% | 42 | 16 | Town |
| Hyde Park | 12 | 422 | 430 | -0.47% | 368 | 1 | Village |
| Belvidere | 13 | 344 | 356 | 0% | 10 | 36 | Town |
Morristown is the largest city in Lamoille County, with a population of 6,200.
Belvidere is the smallest city in Lamoille County, with a population of 344.
There are 13 cities in Lamoille County, Vermont.