There are 40 cities in Fairfield County, Ohio.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Columbus | 1 | Ohio | 909,676 | 906,266 | 0.09% | 4,121 | 220.72 |
| Lancaster | 2 | Ohio | 41,716 | 40,632 | 0.65% | 2,191 | 19.04 |
| Reynoldsburg | 3 | Ohio | 41,182 | 41,052 | 0.08% | 3,635 | 11.33 |
| Pickerington | 4 | Ohio | 25,788 | 23,260 | 2.51% | 2,529 | 10.20 |
| Pataskala | 5 | Ohio | 18,544 | 17,914 | 0.86% | 640 | 28.96 |
| Circleville | 6 | Ohio | 14,617 | 13,951 | 1.16% | 2,026 | 7.22 |
| Canal Winchester | 7 | Ohio | 10,132 | 9,184 | 2.4% | 1,247 | 8.13 |
| Blacklick Estates | 8 | Ohio | 7,923 | 10,097 | -6.41% | 4,197 | 1.89 |
| Groveport | 9 | Ohio | 5,713 | 6,003 | -1.24% | 656 | 8.71 |
| Ashville | 10 | Ohio | 4,827 | 4,551 | 1.45% | 2,024 | 2.38 |
| Commercial Point | 11 | Ohio | 3,258 | 3,084 | 1.37% | 800 | 4.07 |
| Baltimore | 12 | Ohio | 2,977 | 2,985 | -0.07% | 1,333 | 2.23 |
| Lithopolis | 13 | Ohio | 2,931 | 2,181 | 6.85% | 1,293 | 2.27 |
| Beechwood Trails | 14 | Ohio | 2,770 | 3,040 | -2.36% | 779 | 3.56 |
| South Bloomfield | 15 | Ohio | 2,711 | 2,143 | 5.53% | 678 | 4 |
| Buckeye Lake | 16 | Ohio | 2,581 | 2,521 | 0.58% | 1,307 | 1.97 |
| Harbor Hills | 17 | Ohio | 1,685 | 1,548 | 1.51% | 612 | 2.75 |
| Bremen | 18 | Ohio | 1,498 | 1,482 | 0.27% | 1,740 | 0.86 |
| Logan Elm Village | 19 | Ohio | 1,419 | 1,021 | 7.42% | 3,909 | 0.36 |
| Fairfield Beach | 20 | Ohio | 1,355 | 1,145 | 4.07% | 2,069 | 0.66 |
| Etna | 21 | Ohio | 1,237 | 679 | 12.76% | 2,011 | 0.61 |
| Hide-A-Way Hills | 22 | Ohio | 1,123 | 833 | 6.95% | 431 | 2.61 |
| Thornville | 23 | Ohio | 1,103 | 1,083 | 0.46% | 2,073 | 0.53 |
| Millersport | 24 | Ohio | 961 | 979 | -0.41% | 1,033 | 0.93 |
| Thornport | 25 | Ohio | 948 | 946 | -4.63% | 789 | 1.20 |
| Pleasantville | 26 | Ohio | 940 | 944 | -0.11% | 3,469 | 0.27 |
| Amanda | 27 | Ohio | 675 | 669 | 0.3% | 2,129 | 0.32 |
| Thurston | 28 | Ohio | 595 | 607 | -0.5% | 1,473 | 0.40 |
| Stoutsville | 29 | Ohio | 567 | 579 | -0.53% | 490 | 1.16 |
| Carroll | 30 | Ohio | 492 | 502 | -0.4% | 782 | 0.63 |
| Kirkersville | 31 | Ohio | 481 | 467 | 0.84% | 268 | 1.80 |
| Sugar Grove | 32 | Ohio | 418 | 428 | -0.48% | 1,362 | 0.31 |
| Hamburg | 33 | Ohio | 374 | 485 | -1.06% | 156 | 2.40 |
| Jersey | 34 | Ohio | 307 | 483 | -4.95% | 187 | 1.64 |
| Rushville | 35 | Ohio | 299 | 307 | -0.66% | 1,246 | 0.24 |
| Jacksontown | 36 | Ohio | 270 | 154 | 12.03% | 202 | 1.34 |
| Tarlton | 37 | Ohio | 268 | 252 | 1.52% | 698 | 0.38 |
| Darbyville | 38 | Ohio | 191 | 185 | 1.06% | 370 | 0.52 |
| West Rushville | 39 | Ohio | 163 | 165 | 0% | 2,508 | 0.07 |
| Brice | 40 | Ohio | 91 | 95 | -1.09% | 1,034 | 0.09 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Columbus is the largest city in Fairfield County.
Brice is the smallest city in Fairfield County.
There are 40 cities in Fairfield County, Ohio.