There are 40 cities in Herkimer 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 | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Utica | 1 | 63,089 | 65,160 | -0.81% | 3,773 | 16.7 | City |
| German Flatts | 2 | 12,044 | 12,239 | -0.29% | 357 | 33.7 | Town |
| Herkimer | 3 | 9,440 | 9,550 | -0.5% | 298 | 31.7 | Town |
| Ilion | 4 | 7,533 | 7,669 | -0.45% | 3,022 | 2.5 | Village |
| Herkimer | 5 | 7,218 | 7,286 | -0.24% | 2,789 | 2.6 | Village |
| Frankfort | 6 | 6,871 | 6,992 | -0.28% | 189 | 36.4 | Town |
| Little Falls | 7 | 4,494 | 4,581 | -0.49% | 1,171 | 3.8 | City |
| Lowville | 8 | 3,323 | 3,337 | -0.12% | 1,752 | 1.9 | Village |
| Schuyler | 9 | 3,247 | 3,301 | -0.25% | 81 | 39.9 | Town |
| Manheim | 10 | 3,037 | 3,080 | -0.23% | 104 | 29.1 | Town |
| Yorkville | 11 | 2,566 | 2,654 | -0.85% | 3,824 | 0.7 | Village |
| Mohawk | 12 | 2,365 | 2,415 | -0.55% | 2,697 | 0.9 | Village |
| Frankfort | 13 | 2,277 | 2,323 | -0.52% | 2,246 | 1.0 | Village |
| Russia | 14 | 2,277 | 2,265 | 0.4% | 40 | 57.0 | Town |
| Newport | 15 | 2,103 | 2,142 | -0.28% | 66 | 32.0 | Town |
| Dolgeville | 16 | 2,003 | 2,045 | -0.55% | 1,118 | 1.8 | Village |
| Fort Plain | 17 | 1,983 | 2,013 | -0.4% | 1,474 | 1.3 | Village |
| Winfield | 18 | 1,883 | 1,894 | 0% | 80 | 23.6 | Town |
| New Hartford | 19 | 1,867 | 1,847 | 0.27% | 3,016 | 0.6 | Village |
| Salisbury | 20 | 1,828 | 1,827 | 0.16% | 17 | 107.4 | Town |
| Webb | 21 | 1,814 | 1,796 | 0.44% | 4 | 451.4 | Town |
| Columbia | 22 | 1,592 | 1,567 | 0.76% | 45 | 35.1 | Town |
| Little Falls | 23 | 1,469 | 1,496 | -0.27% | 66 | 22.3 | Town |
| Fairfield | 24 | 1,444 | 1,469 | -0.28% | 35 | 41.3 | Town |
| Litchfield | 25 | 1,440 | 1,442 | 0.21% | 48 | 30.0 | Town |
| Richfield Springs | 26 | 1,083 | 1,098 | -0.37% | 1,075 | 1.0 | Village |
| Warren | 27 | 1,018 | 1,033 | -0.2% | 27 | 38.1 | Town |
| Ohio | 28 | 973 | 964 | 0.41% | 3 | 301.3 | Town |
| Danube | 29 | 957 | 947 | 0.42% | 33 | 29.4 | Town |
| Norway | 30 | 744 | 740 | 0.54% | 21 | 35.6 | Town |
| West Winfield | 31 | 731 | 745 | -0.54% | 802 | 0.9 | Village |
| Stark | 32 | 700 | 712 | -0.29% | 22 | 31.6 | Town |
| Nelliston | 33 | 564 | 568 | -0.18% | 510 | 1.1 | Village |
| Newport | 34 | 552 | 562 | -0.54% | 1,049 | 0.5 | Village |
| Poland | 35 | 480 | 488 | -0.41% | 884 | 0.5 | Village |
| Middleville | 36 | 426 | 434 | -0.47% | 557 | 0.8 | Village |
| Remsen | 37 | 407 | 422 | -0.97% | 1,094 | 0.4 | Village |
| Castorland | 38 | 337 | 339 | -0.3% | 1,000 | 0.3 | Village |
| Clayville | 39 | 332 | 340 | -0.6% | 756 | 0.4 | Village |
| Cold Brook | 40 | 258 | 266 | -0.77% | 588 | 0.4 | Village |
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.
Utica is the largest city in Herkimer County.
Cold Brook is the smallest city in Herkimer County.
There are 40 cities in Herkimer County, New York.