25 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Geneseo | 1 | 10,466 | 10,217 | 0.32% | 238 | 43.93 | Town |
| Geneseo | 2 | 7,819 | 7,598 | 0.57% | 2,744 | 2.85 | Village |
| Livonia | 3 | 7,371 | 7,491 | -0.4% | 193 | 38.26 | Town |
| Avon | 4 | 7,006 | 6,917 | 0.32% | 170 | 41.22 | Town |
| North Dansville | 5 | 5,129 | 5,311 | -0.85% | 520 | 9.86 | Town |
| Mount Morris | 6 | 4,374 | 4,410 | 0.39% | 87 | 50.20 | Town |
| Dansville | 7 | 4,292 | 4,427 | -0.63% | 1,646 | 2.61 | Village |
| Lima | 8 | 4,030 | 4,149 | -0.74% | 126 | 31.89 | Town |
| Caledonia | 9 | 4,024 | 4,147 | -0.81% | 92 | 43.88 | Town |
| Avon | 10 | 3,475 | 3,380 | 0.55% | 1,105 | 3.15 | Village |
| York | 11 | 3,109 | 3,179 | -0.61% | 63 | 49.05 | Town |
| Mount Morris | 12 | 2,804 | 2,891 | -0.6% | 1,369 | 2.05 | Village |
| Nunda | 13 | 2,623 | 2,686 | -0.57% | 71 | 37.09 | Town |
| Conesus | 14 | 2,290 | 2,310 | -0.09% | 70 | 32.89 | Town |
| Springwater | 15 | 2,220 | 2,287 | -0.8% | 42 | 53.10 | Town |
| Lima | 16 | 2,078 | 2,130 | -0.48% | 1,545 | 1.34 | Village |
| Groveland | 17 | 2,065 | 2,190 | -0.58% | 53 | 39.13 | Town |
| Caledonia | 18 | 2,056 | 2,116 | -0.58% | 980 | 2.10 | Village |
| Leicester | 19 | 2,009 | 2,076 | -0.84% | 59 | 33.84 | Town |
| Dansville | 20 | 1,798 | 1,827 | -0.28% | 37 | 48.37 | Town |
| Sparta | 21 | 1,527 | 1,583 | -0.84% | 55 | 27.79 | Town |
| Livonia | 22 | 1,453 | 1,497 | -0.62% | 1,434 | 1.01 | Village |
| Nunda | 23 | 1,139 | 1,168 | -0.52% | 1,167 | 0.98 | Village |
| West Sparta | 24 | 1,117 | 1,152 | -0.8% | 33 | 33.45 | Town |
| Leicester | 25 | 450 | 464 | -0.66% | 1,247 | 0.36 | Village |
Geneseo is the largest city in Livingston County, with a population of 10,466.
Leicester is the smallest city in Livingston County.
There are 25 cities in Livingston County, New York.