17 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 43701 | Zanesville | 56,402 |
| 43830 | Nashport | 6,549 |
| 43822 | Frazeysburg | 5,095 |
| 43762 | New Concord | 4,988 |
| 43777 | Roseville | 4,253 |
| 43821 | Dresden | 3,998 |
| 43771 | Philo | 2,103 |
| 43734 | Duncan Falls | 1,568 |
| 43767 | Norwich | 1,443 |
| 43802 | Adamsville | 1,313 |
| 43720 | Blue Rock | 1,308 |
| 43727 | Chandlersville | 1,202 |
| 43746 | Hopewell | 715 |
| 43735 | East Fultonham | 620 |
| 43842 | Trinway | 286 |
| 43738 | Fultonham | 106 |
| 43791 | White Cottage | 33 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Muskingum County, Ohio (US Census).