13 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newark | 1 | 52,115 | 50,041 | 0.67% | 2,485 | 21 | City |
| Pataskala | 2 | 18,782 | 17,915 | 0.78% | 649 | 29 | City |
| Heath | 3 | 11,000 | 10,465 | 0.82% | 958 | 11 | City |
| Granville | 4 | 6,483 | 5,958 | 1.38% | 1,348 | 5 | Village |
| Johnstown | 5 | 5,437 | 5,193 | 0.76% | 1,821 | 3 | Village |
| Buckeye Lake | 6 | 2,602 | 2,520 | 0.54% | 1,318 | 2 | Village |
| Hebron | 7 | 2,444 | 2,329 | 0.78% | 825 | 3 | Village |
| Utica | 8 | 2,161 | 2,071 | 0.7% | 1,238 | 2 | Village |
| Hanover | 9 | 1,390 | 1,272 | 1.46% | 761 | 2 | Village |
| Alexandria | 10 | 502 | 486 | 0.6% | 2,057 | 0 | Village |
| Kirkersville | 11 | 484 | 468 | 0.62% | 269 | 2 | Village |
| St. Louisville | 12 | 372 | 351 | 1.09% | 1,470 | 0 | Village |
| Gratiot | 13 | 218 | 214 | 0.46% | 1,627 | 0 | Village |
Newark is the largest city in Licking County, with a population of 52,115.
Gratiot is the smallest city in Licking County, with a population of 218.
There are 13 cities in Licking County, Ohio.