50 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Jackson | 1 | 50,590 | 46,661 | 1.95% | 1,425 | 35 | Township |
| Jackson | 2 | 43,501 | 43,325 | 0.29% | 1,196 | 36 | Township |
| Jackson | 3 | 6,217 | 6,259 | -0.14% | 687 | 9 | City |
| Jackson | 4 | 6,128 | 6,082 | 0.54% | 166 | 37 | Township |
| Wellston | 5 | 5,511 | 5,418 | 0.33% | 791 | 7 | City |
| Jackson | 6 | 5,031 | 5,043 | 0.24% | 208 | 24 | Township |
| Jackson | 7 | 4,012 | 3,915 | 0.83% | 129 | 31 | Township |
| Jackson | 8 | 3,987 | 4,024 | -0.05% | 196 | 20 | Township |
| Jackson | 9 | 3,658 | 3,678 | -0.11% | 150 | 24 | Township |
| Jackson | 10 | 3,243 | 3,125 | 0.93% | 104 | 31 | Township |
| Jackson | 11 | 3,066 | 3,141 | -0.16% | 86 | 36 | Township |
| Jackson | 12 | 2,771 | 2,776 | 0.14% | 74 | 38 | Township |
| Jackson | 13 | 2,661 | 2,676 | 0.15% | 86 | 31 | Township |
| Lick | 14 | 2,634 | 2,631 | 0.08% | 142 | 19 | Township |
| Jackson | 15 | 2,554 | 2,540 | 0.2% | 68 | 37 | Township |
| Jackson | 16 | 2,406 | 2,413 | -0.12% | 99 | 24 | Township |
| Jackson | 17 | 2,381 | 2,377 | 0.34% | 64 | 37 | Township |
| Jackson | 18 | 2,111 | 2,119 | 0.05% | 88 | 24 | Township |
| Jackson | 19 | 2,007 | 2,022 | 0% | 79 | 25 | Township |
| Coal | 20 | 1,976 | 1,973 | 0.15% | 102 | 19 | Township |
| Scioto | 21 | 1,967 | 1,942 | 0.25% | 47 | 42 | Township |
| Jackson | 22 | 1,899 | 1,869 | 0.42% | 60 | 32 | Township |
| Liberty | 23 | 1,794 | 1,793 | 0.17% | 44 | 41 | Township |
| Jackson | 24 | 1,775 | 1,796 | -0.11% | 48 | 37 | Township |
| Jackson | 25 | 1,773 | 1,731 | 1.08% | 63 | 28 | Township |
| Jackson | 26 | 1,587 | 1,574 | 0.57% | 44 | 36 | Township |
| Jackson | 27 | 1,420 | 1,406 | 0.64% | 41 | 35 | Township |
| Oak Hill | 28 | 1,402 | 1,411 | -0.14% | 1,103 | 1 | Village |
| Jackson | 29 | 1,220 | 1,223 | 0.16% | 31 | 39 | Township |
| Jackson | 30 | 1,184 | 1,178 | 0.42% | 23 | 51 | Township |
| Jackson | 31 | 1,164 | 1,106 | 1.39% | 28 | 42 | Township |
| Jackson | 32 | 1,156 | 1,154 | 0.52% | 34 | 34 | Township |
| Jackson | 33 | 1,155 | 970 | 2.94% | 41 | 28 | Township |
| Bloomfield | 34 | 1,144 | 1,147 | 0.18% | 30 | 39 | Township |
| Jackson | 35 | 1,064 | 1,055 | 0.47% | 41 | 26 | Township |
| Jackson | 36 | 1,051 | 1,067 | -0.38% | 45 | 24 | Township |
| Jackson | 37 | 1,034 | 1,035 | 0.19% | 35 | 30 | Township |
| Milton | 38 | 1,033 | 1,043 | -0.19% | 26 | 39 | Township |
| Massieville | 39 | 875 | 579 | 7.1% | 464 | 2 | CDP |
| Jackson | 40 | 842 | 848 | -0.24% | 33 | 26 | Township |
| Washington | 41 | 791 | 789 | 0% | 35 | 22 | Township |
| Jackson | 42 | 726 | 717 | 0.14% | 20 | 36 | Township |
| Jackson | 43 | 687 | 703 | 0.15% | 18 | 38 | Township |
| Jackson | 44 | 578 | 595 | -0.34% | 21 | 27 | Township |
| Jackson | 45 | 494 | 498 | -0.8% | 15 | 32 | Township |
| Jackson | 46 | 471 | 459 | 1.07% | 21 | 22 | Township |
| Coalton | 47 | 444 | 444 | 0% | 800 | 1 | Village |
| Jackson | 48 | 401 | 415 | -0.99% | 20 | 20 | Township |
| Andersonville | 49 | 347 | 584 | -7.47% | 153 | 2 | CDP |
| Jackson | 50 | 347 | 348 | 0.29% | 47 | 7 | Township |
Jackson is the largest city in Jackson County, with a population of 50,590.
Jackson is the smallest city in Jackson County, with a population of 347.
There are 50 cities in Jackson County, Ohio.