25 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Derby | 1 | 4,477 | 4,573 | -0.33% | 91 | 49 | Town |
| Newport | 2 | 4,276 | 4,447 | -0.65% | 730 | 6 | City |
| Newport | 3 | 2,751 | 1,582 | 6.38% | 66 | 42 | Town |
| Barton | 4 | 2,729 | 2,865 | -0.8% | 64 | 43 | Town |
| Troy | 5 | 1,720 | 1,724 | 0.06% | 48 | 36 | Town |
| Craftsbury | 6 | 1,293 | 1,332 | -0.61% | 33 | 39 | Town |
| Irasburg | 7 | 1,196 | 1,238 | -0.75% | 30 | 40 | Town |
| Glover | 8 | 1,082 | 1,114 | -0.64% | 29 | 38 | Town |
| Coventry | 9 | 1,062 | 1,095 | -0.56% | 39 | 27 | Town |
| Brownington | 10 | 1,014 | 1,043 | -0.59% | 36 | 28 | Town |
| Charleston | 11 | 979 | 1,018 | -0.81% | 26 | 37 | Town |
| Albany | 12 | 935 | 971 | -0.85% | 24 | 39 | Town |
| Lowell | 13 | 866 | 887 | -0.8% | 15 | 57 | Town |
| Greensboro | 14 | 777 | 807 | -0.38% | 21 | 38 | Town |
| Orleans | 15 | 759 | 800 | -0.91% | 859 | 1 | Village |
| Barton | 16 | 710 | 749 | -0.84% | 628 | 1 | Village |
| Derby Line | 17 | 665 | 680 | -0.3% | 916 | 1 | Village |
| Derby Center | 18 | 632 | 649 | -0.47% | 454 | 1 | Village |
| Holland | 19 | 619 | 637 | -0.64% | 16 | 38 | Town |
| Morgan | 20 | 610 | 638 | -0.65% | 20 | 31 | Town |
| North Troy | 21 | 607 | 609 | 0% | 324 | 2 | Village |
| Jay | 22 | 545 | 549 | 0.55% | 16 | 34 | Town |
| Westfield | 23 | 520 | 528 | 0% | 13 | 40 | Town |
| Westmore | 24 | 338 | 353 | -0.59% | 10 | 34 | Town |
| Albany | 25 | 176 | 181 | -0.56% | 114 | 2 | Village |
Derby is the largest city in Orleans County, with a population of 4,477.
Albany is the smallest city in Orleans County, with a population of 176.
There are 25 cities in Orleans County, Vermont.