| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Norwich | 1 | 6,435 | 7,006 | -1.58% | 3,030 | 2 | City |
| Greene | 2 | 4,995 | 5,293 | -0.52% | 67 | 75 | Town |
| Sherburne | 3 | 3,853 | 3,940 | -0.1% | 88 | 44 | Town |
| Oxford | 4 | 3,559 | 3,611 | -0.08% | 59 | 60 | Town |
| Norwich | 5 | 3,525 | 3,562 | 0.74% | 84 | 42 | Town |
| Bainbridge | 6 | 2,994 | 3,053 | -0.03% | 87 | 34 | Town |
| Afton | 7 | 2,718 | 2,769 | -0.04% | 59 | 46 | Town |
| Guilford | 8 | 2,674 | 2,722 | 0% | 43 | 62 | Town |
| New Berlin | 9 | 2,480 | 2,520 | -0.08% | 54 | 46 | Town |
| North Norwich | 10 | 1,643 | 1,677 | -0.12% | 58 | 28 | Town |
| Plymouth | 11 | 1,587 | 1,621 | -0.06% | 38 | 42 | Town |
| Coventry | 12 | 1,482 | 1,513 | -0.13% | 31 | 49 | Town |
| Greene | 13 | 1,401 | 1,503 | -1.34% | 1,312 | 1 | Village |
| Sherburne | 14 | 1,351 | 1,390 | -0.59% | 889 | 2 | Village |
| Oxford | 15 | 1,314 | 1,354 | -0.61% | 742 | 2 | Village |
| Bainbridge | 16 | 1,241 | 1,277 | -0.56% | 944 | 1 | Village |
| Smithville | 17 | 1,228 | 1,247 | -0.08% | 24 | 50 | Town |
| Smyrna | 18 | 1,214 | 1,234 | -0.16% | 29 | 42 | Town |
| New Berlin | 19 | 904 | 912 | -0.22% | 848 | 1 | Village |
| Columbus | 20 | 889 | 906 | 0% | 24 | 37 | Town |
| Preston | 21 | 881 | 895 | 0% | 25 | 35 | Town |
| Otselic | 22 | 834 | 852 | -0.12% | 22 | 38 | Town |
| McDonough | 23 | 788 | 801 | 0% | 20 | 39 | Town |
| Afton | 24 | 767 | 790 | -0.65% | 502 | 2 | Village |
| Earlville | 25 | 755 | 796 | -1.05% | 698 | 1 | Village |
| Pitcher | 26 | 653 | 667 | -0.15% | 23 | 28 | Town |
| Pharsalia | 27 | 505 | 514 | 0.2% | 13 | 39 | Town |
| DeRuyter | 28 | 411 | 428 | -0.72% | 1,114 | 0 | Village |
| Lincklaen | 29 | 351 | 360 | -0.28% | 13 | 26 | Town |
| German | 30 | 304 | 308 | 0.33% | 11 | 28 | Town |
| Smyrna | 31 | 201 | 206 | -0.5% | 824 | 0 | Village |
Norwich is the largest city in Chenango County, with a population of 6,435.
Smyrna is the smallest city in Chenango County, with a population of 201.
There are 31 cities in Chenango County, New York.