52 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Barre | 1 | 8,260 | 8,490 | -0.53% | 2,072 | 4 | City |
| Barre | 2 | 8,260 | 8,478 | -0.53% | 2,072 | 4 | City |
| Barre | 3 | 7,984 | 7,921 | -0.44% | 261 | 31 | Town |
| Barre | 4 | 7,984 | 7,924 | -0.44% | 261 | 31 | Town |
| Montpelier | 5 | 7,876 | 8,083 | -0.49% | 783 | 10 | City |
| Montpelier | 6 | 7,876 | 8,070 | -0.49% | 783 | 10 | City |
| Northfield | 7 | 5,891 | 5,919 | -0.41% | 132 | 45 | Town |
| Northfield | 8 | 5,891 | 5,911 | -0.41% | 132 | 45 | Town |
| Northfield | 9 | 5,487 | 4,413 | 7.13% | 2,255 | 2 | CDP |
| Waterbury | 10 | 5,398 | 5,327 | -0.66% | 112 | 48 | Town |
| Waterbury | 11 | 5,398 | 5,328 | -0.66% | 112 | 48 | Town |
| Berlin | 12 | 2,848 | 2,850 | -0.97% | 79 | 36 | Town |
| Berlin | 13 | 2,848 | 2,850 | -0.97% | 79 | 36 | Town |
| East Montpelier | 14 | 2,591 | 2,596 | -0.5% | 82 | 32 | Town |
| East Montpelier | 15 | 2,591 | 2,596 | -0.5% | 82 | 32 | Town |
| Waterbury | 16 | 2,108 | 1,857 | 7.17% | 1,632 | 1 | CDP |
| Warren | 17 | 1,959 | 1,977 | -0.76% | 49 | 40 | Town |
| Warren | 18 | 1,959 | 1,975 | -0.76% | 49 | 40 | Town |
| Waitsfield | 19 | 1,879 | 1,839 | -0.05% | 73 | 26 | Town |
| Waitsfield | 20 | 1,879 | 1,838 | -0.05% | 73 | 26 | Town |
| Middlesex | 21 | 1,811 | 1,780 | -0.17% | 46 | 39 | Town |
| Middlesex | 22 | 1,811 | 1,779 | -0.17% | 46 | 39 | Town |
| Moretown | 23 | 1,748 | 1,748 | -0.23% | 44 | 40 | Town |
| Moretown | 24 | 1,748 | 1,747 | -0.23% | 44 | 40 | Town |
| Calais | 25 | 1,660 | 1,667 | -0.48% | 44 | 38 | Town |
| Calais | 26 | 1,660 | 1,666 | -0.48% | 44 | 38 | Town |
| Marshfield | 27 | 1,547 | 1,587 | -1.02% | 36 | 43 | Town |
| Marshfield | 28 | 1,547 | 1,584 | -1.02% | 36 | 43 | Town |
| Cabot | 29 | 1,469 | 1,435 | 0.07% | 40 | 37 | Town |
| Cabot | 30 | 1,469 | 1,434 | 0.07% | 40 | 37 | Town |
| Duxbury | 31 | 1,442 | 1,416 | -0.14% | 34 | 43 | Town |
| Duxbury | 32 | 1,442 | 1,416 | -0.14% | 34 | 43 | Town |
| Fayston | 33 | 1,402 | 1,367 | -0.43% | 38 | 37 | Town |
| Fayston | 34 | 1,402 | 1,370 | -0.43% | 38 | 37 | Town |
| South Barre | 35 | 1,398 | 1,110 | 0.87% | 721 | 2 | CDP |
| Plainfield | 36 | 1,236 | 1,236 | -0.56% | 59 | 21 | Town |
| Plainfield | 37 | 1,236 | 1,236 | -0.56% | 59 | 21 | Town |
| East Barre | 38 | 1,213 | 807 | 2.1% | 463 | 3 | CDP |
| Worcester | 39 | 951 | 965 | -0.94% | 25 | 39 | Town |
| Worcester | 40 | 951 | 966 | -0.94% | 25 | 39 | Town |
| Woodbury | 41 | 921 | 924 | -0.86% | 24 | 38 | Town |
| Woodbury | 42 | 921 | 924 | -0.86% | 24 | 38 | Town |
| Plainfield | 43 | 437 | 415 | 0.46% | 924 | 0 | CDP |
| Graniteville | 44 | 413 | 907 | -5.71% | 242 | 2 | CDP |
| Cabot | 45 | 340 | 228 | 7.26% | 274 | 1 | CDP |
| Waterbury Center | 46 | 326 | 211 | 7.24% | 751 | 0 | CDP |
| Marshfield | 47 | 268 | 272 | -0.37% | 1,039 | 0 | Village |
| Marshfield | 48 | 268 | 271 | -0.37% | 1,039 | 0 | Village |
| Waitsfield | 49 | 244 | 238 | 2.09% | 373 | 1 | CDP |
| Websterville | 50 | 174 | 380 | -12.56% | 86 | 2 | CDP |
| Worcester | 51 | 116 | 106 | 0% | 959 | 0 | CDP |
| East Montpelier | 52 | 79 | 82 | 6.76% | 332 | 0 | CDP |
Barre is the largest city in Washington County, with a population of 8,260.
East Montpelier is the smallest city in Washington County, with a population of 79.
There are 52 cities in Washington County, Vermont.