39 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sanford | 1 | 22,437 | 21,972 | 0.42% | 469 | 47.79 | City |
| Sanford city | 2 | 22,267 | 21,972 | 0.04% | 466 | 47.79 | City |
| Biddeford | 3 | 22,252 | 22,539 | -0.26% | 740 | 30.09 | City |
| Biddeford city | 4 | 22,175 | 22,539 | -0.43% | 737 | 30.09 | City |
| Saco | 5 | 21,321 | 20,418 | 0.86% | 553 | 38.59 | City |
| Saco city | 6 | 21,114 | 20,418 | 0.37% | 547 | 38.59 | City |
| York town | 7 | 14,368 | 13,731 | 0.88% | 263 | 54.70 | Town |
| Wells town | 8 | 12,099 | 11,353 | 1.02% | 210 | 57.66 | Town |
| Kennebunk town | 9 | 12,013 | 11,549 | 0.41% | 342 | 35.11 | Town |
| Kittery town | 10 | 11,876 | 10,082 | 4.82% | 667 | 17.81 | Town |
| Old Orchard Beach town | 11 | 9,501 | 8,979 | 0.7% | 1,278 | 7.43 | Town |
| Buxton town | 12 | 8,598 | 8,381 | 0.35% | 212 | 40.53 | Town |
| Berwick town | 13 | 8,408 | 7,979 | 0.85% | 224 | 37.52 | Town |
| Waterboro town | 14 | 8,142 | 7,947 | 0.23% | 147 | 55.33 | Town |
| South Berwick town | 15 | 7,915 | 7,478 | 1.03% | 246 | 32.13 | Town |
| Eliot town | 16 | 7,631 | 6,766 | 2.1% | 386 | 19.78 | Town |
| Lebanon town | 17 | 6,806 | 6,480 | 0.8% | 124 | 55.01 | Town |
| North Berwick town | 18 | 5,308 | 4,981 | 1.03% | 140 | 38.02 | Town |
| Hollis town | 19 | 5,011 | 4,757 | 0.82% | 156 | 32.04 | Town |
| Lyman town | 20 | 4,666 | 4,524 | 0.37% | 120 | 39 | Town |
| Arundel town | 21 | 4,543 | 4,278 | 0.8% | 190 | 23.85 | Town |
| Limington town | 22 | 4,175 | 3,898 | 1.14% | 99 | 42.04 | Town |
| York Harbor | 23 | 3,792 | 3,484 | 1.36% | 1,183 | 3.21 | CDP |
| South Eliot | 24 | 3,720 | 3,047 | 0.3% | 517 | 7.19 | CDP |
| Limerick town | 25 | 3,697 | 3,196 | 2.41% | 136 | 27.15 | Town |
| Kennebunkport town | 26 | 3,694 | 3,630 | -0.03% | 180 | 20.56 | Town |
| Alfred town | 27 | 3,191 | 3,073 | -0.09% | 117 | 27.26 | Town |
| Shapleigh town | 28 | 3,035 | 2,924 | 0.53% | 78 | 38.73 | Town |
| Lake Arrowhead | 29 | 2,852 | 2,727 | -0.52% | 547 | 5.21 | CDP |
| Acton town | 30 | 2,725 | 2,674 | 0.11% | 72 | 37.76 | Town |
| Cape Neddick | 31 | 2,435 | 2,563 | -0.37% | 653 | 3.73 | CDP |
| Dayton town | 32 | 2,211 | 2,137 | 0.45% | 124 | 17.90 | Town |
| Parsonsfield town | 33 | 1,815 | 1,789 | 0% | 31 | 58.89 | Town |
| Newfield town | 34 | 1,673 | 1,652 | 0.18% | 52 | 32.27 | Town |
| Cornish town | 35 | 1,604 | 1,516 | 1.13% | 72 | 22.18 | Town |
| Ogunquit town | 36 | 1,597 | 1,577 | -0.06% | 391 | 4.08 | Town |
| West Kennebunk | 37 | 1,292 | 1,154 | 0.62% | 371 | 3.48 | CDP |
| Kittery Point | 38 | 1,018 | 1,034 | 0% | 534 | 1.91 | CDP |
| Kezar Falls | 39 | 989 | 628 | 7.15% | 1,288 | 0.77 | CDP |
Sanford is the largest city in York County, with a population of 22,437.
Kezar Falls is the smallest city in York County.
There are 39 cities in York County, Maine.