33 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 |
| Etna | 2 | 20,741 | 18,911 | 2% | 891 | 23 | Township |
| Pataskala | 3 | 18,782 | 17,915 | 0.78% | 649 | 29 | City |
| Heath | 4 | 11,000 | 10,465 | 0.82% | 958 | 11 | City |
| Granville | 5 | 10,835 | 10,271 | 0.42% | 421 | 26 | Township |
| Union | 6 | 9,473 | 9,101 | 0.55% | 229 | 41 | Township |
| Granville | 7 | 6,483 | 5,958 | 1.38% | 1,348 | 5 | Village |
| Johnstown | 8 | 5,437 | 5,193 | 0.76% | 1,821 | 3 | Village |
| Licking | 9 | 5,047 | 4,826 | 0.64% | 193 | 26 | Township |
| Granville | 10 | 4,248 | 4,222 | 0.28% | 108 | 39 | Township |
| Newton | 11 | 3,256 | 3,125 | 0.52% | 140 | 23 | Township |
| Hanover | 12 | 3,254 | 3,038 | 1.31% | 131 | 25 | Township |
| Washington | 13 | 3,159 | 3,038 | 0.51% | 134 | 23 | Township |
| Liberty | 14 | 2,829 | 2,716 | 0.53% | 109 | 26 | Township |
| Jersey | 15 | 2,695 | 2,570 | 0.63% | 99 | 27 | Township |
| St. Albans | 16 | 2,647 | 2,543 | 0.57% | 101 | 26 | Township |
| Buckeye Lake | 17 | 2,602 | 2,520 | 0.54% | 1,318 | 2 | Village |
| Hebron | 18 | 2,444 | 2,329 | 0.78% | 825 | 3 | Village |
| Mary Ann | 19 | 2,291 | 2,143 | 0.97% | 99 | 23 | Township |
| Newark | 20 | 2,192 | 2,106 | 0.55% | 340 | 6 | Township |
| Utica | 21 | 2,161 | 2,071 | 0.7% | 1,238 | 2 | Village |
| Bennington | 22 | 1,787 | 1,713 | 0.56% | 66 | 27 | Township |
| McKean | 23 | 1,667 | 1,595 | 0.6% | 65 | 26 | Township |
| Homer | 24 | 1,639 | 1,597 | 0.49% | 67 | 24 | Township |
| Hanover | 25 | 1,390 | 1,272 | 1.46% | 761 | 2 | Village |
| Eden | 26 | 1,348 | 1,284 | 0.67% | 63 | 21 | Township |
| Burlington | 27 | 1,269 | 1,215 | 0.63% | 50 | 26 | Township |
| Fallsbury | 28 | 1,035 | 996 | 0.49% | 42 | 25 | Township |
| Homer | 29 | 950 | 982 | -0.73% | 25 | 38 | Township |
| Alexandria | 30 | 502 | 486 | 0.6% | 2,057 | 0 | Village |
| Kirkersville | 31 | 484 | 468 | 0.62% | 269 | 2 | Village |
| St. Louisville | 32 | 372 | 351 | 1.09% | 1,470 | 0 | Village |
| Gratiot | 33 | 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 33 cities in Licking County, Ohio.