37 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Norwich township | 1 | 37,765 | 37,925 | -0.34% | 2,765 | 13.66 | Township |
| Zanesville | 2 | 24,569 | 24,774 | -0.17% | 2,087 | 11.77 | City |
| Falls township | 3 | 8,765 | 8,719 | 0.29% | 357 | 24.58 | Township |
| Newton township | 4 | 5,265 | 5,223 | 0.38% | 114 | 46.29 | Township |
| Muskingum township | 5 | 4,921 | 4,912 | 0.24% | 164 | 30.03 | Township |
| Washington township | 6 | 4,197 | 4,182 | 0.31% | 154 | 27.30 | Township |
| Union township | 7 | 3,988 | 4,262 | -2.42% | 157 | 25.44 | Township |
| Hopewell township | 8 | 3,218 | 3,200 | 0.34% | 84 | 38.35 | Township |
| Hopewell township | 9 | 2,736 | 2,676 | 0.66% | 80 | 34.08 | Township |
| North Zanesville | 10 | 2,587 | 2,187 | -0.58% | 729 | 3.55 | CDP |
| Hopewell township | 11 | 2,570 | 2,593 | -0.08% | 68 | 37.56 | Township |
| Licking township | 12 | 2,356 | 2,355 | 0.26% | 94 | 25.04 | Township |
| New Concord | 13 | 2,236 | 2,361 | -1.11% | 1,237 | 1.81 | Village |
| South Zanesville | 14 | 1,906 | 1,896 | 0.11% | 2,371 | 0.80 | Village |
| Cass township | 15 | 1,804 | 1,804 | 0.22% | 64 | 28.30 | Township |
| Duncan Falls | 16 | 1,751 | 1,549 | 3.43% | 1,412 | 1.24 | CDP |
| Roseville | 17 | 1,735 | 1,747 | -0.12% | 2,525 | 0.69 | Village |
| Dresden | 18 | 1,642 | 1,654 | -0.12% | 1,285 | 1.28 | Village |
| Hopewell township | 19 | 1,433 | 1,386 | 0.56% | 57 | 25.15 | Township |
| Frazeysburg | 20 | 1,351 | 1,353 | 0% | 1,315 | 1.03 | Village |
| Brush Creek township | 21 | 1,270 | 1,265 | 0.32% | 42 | 30.27 | Township |
| Pleasant Grove | 22 | 1,202 | 1,481 | -2.91% | 374 | 3.21 | CDP |
| Salt Creek township | 23 | 1,115 | 1,097 | 0.54% | 40 | 27.90 | Township |
| Norwich township | 24 | 1,028 | 1,033 | 0% | 40 | 25.87 | Township |
| Hopewell township | 25 | 999 | 994 | 0% | 32 | 31.31 | Township |
| Clay township | 26 | 957 | 960 | 0.1% | 102 | 9.40 | Township |
| Philo | 27 | 722 | 719 | 0.14% | 1,410 | 0.51 | Village |
| Blue Rock township | 28 | 673 | 660 | 0.6% | 25 | 26.90 | Township |
| Adams township | 29 | 622 | 621 | 0.32% | 25 | 25.07 | Township |
| Rich Hill township | 30 | 504 | 502 | 0.4% | 14 | 36.38 | Township |
| Nashport | 31 | 394 | 332 | 7.07% | 158 | 2.49 | CDP |
| Meigs township | 32 | 210 | 202 | 1.45% | 6 | 36.98 | Township |
| Trinway | 33 | 184 | 137 | -6.12% | 657 | 0.28 | CDP |
| Adamsville | 34 | 137 | 137 | 0% | 2,537 | 0.05 | Village |
| Fultonham | 35 | 112 | 112 | 0% | 1,217 | 0.09 | Village |
| East Fultonham | 36 | 95 | 362 | -14.41% | 237 | 0.40 | CDP |
| Norwich | 37 | 90 | 90 | 0% | 1,169 | 0.08 | Village |
Norwich township is the largest city in Muskingum County, with a population of 37,765.
Norwich is the smallest city in Muskingum County.
There are 37 cities in Muskingum County, Ohio.