There are 27 cities in Delaware County, New York.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Oneonta | 1 | New York | 16,091 | 13,049 | 4.96% | 3,690 | 4.36 |
| Sidney | 2 | New York | 3,644 | 3,706 | -0.44% | 1,531 | 2.38 |
| Delhi | 3 | New York | 3,285 | 2,781 | 3.99% | 1,034 | 3.18 |
| Walton | 4 | New York | 2,871 | 2,918 | -0.42% | 1,862 | 1.54 |
| West End | 5 | New York | 2,085 | 2,199 | -1.32% | 571 | 3.65 |
| Deposit | 6 | New York | 1,410 | 1,453 | -0.77% | 1,116 | 1.26 |
| Bainbridge | 7 | New York | 1,247 | 1,277 | -0.64% | 949 | 1.31 |
| Unadilla | 8 | New York | 1,083 | 1,097 | -0.37% | 1,044 | 1.04 |
| Stamford | 9 | New York | 1,065 | 1,083 | -0.47% | 799 | 1.33 |
| Otego | 10 | New York | 906 | 934 | -0.77% | 782 | 1.16 |
| Hancock | 11 | New York | 900 | 915 | -0.44% | 575 | 1.57 |
| Livingston Manor | 12 | New York | 798 | 928 | -3.85% | 246 | 3.25 |
| Davenport Center | 13 | New York | 715 | 263 | 18.77% | 230 | 3.10 |
| Margaretville | 14 | New York | 473 | 528 | -2.88% | 680 | 0.70 |
| Roscoe | 15 | New York | 458 | 489 | 1.78% | 470 | 0.97 |
| Pine Hill | 16 | New York | 446 | 274 | 10.67% | 215 | 2.08 |
| Schenevus | 17 | New York | 437 | 556 | -5.41% | 425 | 1.03 |
| Hobart | 18 | New York | 390 | 398 | -0.51% | 783 | 0.50 |
| Bloomville | 19 | New York | 362 | 218 | 11.04% | 275 | 1.32 |
| Franklin | 20 | New York | 276 | 280 | -0.36% | 814 | 0.34 |
| Wells Bridge | 21 | New York | 250 | 151 | 1.21% | 277 | 0.90 |
| Downsville | 22 | New York | 227 | 405 | -16.24% | 52 | 4.39 |
| Fleischmanns | 23 | New York | 227 | 233 | -0.87% | 347 | 0.66 |
| Jefferson | 24 | New York | 177 | 109 | 10.63% | 166 | 1.06 |
| Andes | 25 | New York | 121 | 199 | 2.54% | 87 | 1.40 |
| Westford | 26 | New York | 103 | 73 | 8.42% | 63 | 1.65 |
| Prattsville | 27 | New York | 79 | 117 | -10.23% | 20 | 4.04 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Oneonta is the largest city in Delaware County.
Prattsville is the smallest city in Delaware County.
There are 27 cities in Delaware County, New York.