Identifiers: city · CDP · village
| Rank | Community | Population |
|---|---|---|
| 1 | Elmira (city), NY | 26,523 |
| 2 | Corning (city), NY | 10,551 |
| 3 | Southport (CDP), NY | 6,782 |
| 4 | Horseheads (village), NY | 6,606 |
| 5 | Big Flats (CDP), NY | 5,555 |
| 6 | West Elmira (CDP), NY | 4,850 |
| 7 | Waverly (village), NY | 4,373 |
| 8 | Gang Mills (CDP), NY | 4,261 |
| 9 | Elmira Heights (village), NY | 3,916 |
| 10 | Horseheads North (CDP), NY | 2,761 |
| 11 | Watkins Glen (village), NY | 1,863 |
| 12 | Painted Post (village), NY | 1,768 |
| 13 | Montour Falls (village), NY | 1,635 |
| 14 | Addison (village), NY | 1,561 |
| 15 | South Corning (village), NY | 1,108 |
| 16 | Pine Valley (CDP), NY | 832 |
| 17 | Savona (village), NY | 672 |
| 18 | Campbell (CDP), NY | 659 |
| 19 | Breesport (CDP), NY | 629 |
| 20 | Coopers Plains (CDP), NY | 609 |