Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Jamestown (city), NY | 28,712 |
| 2 | Lakewood (village), NY | 3,002 |
| 3 | Jamestown West (CDP), NY | 2,652 |
| 4 | Falconer (village), NY | 2,269 |
| 5 | Frewsburg (CDP), NY | 1,843 |
| 6 | Mayville (village), NY | 1,442 |
| 7 | Randolph (CDP), NY | 1,297 |
| 8 | Celoron (village), NY | 1,069 |
| 9 | Sherman (village), NY | 649 |
| 10 | Sinclairville (village), NY | 579 |
| 11 | East Randolph (CDP), NY | 571 |
| 12 | Panama (village), NY | 475 |
| 13 | Kennedy (CDP), NY | 473 |
| 14 | Busti (CDP), NY | 349 |
| 15 | Bemus Point (village), NY | 306 |
| 16 | Chautauqua (CDP), NY | 218 |