31 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Deerfield | 1 | 44,721 | 40,718 | 1.25% | 2,793 | 16 | Township |
| Kent | 2 | 27,492 | 28,176 | -0.41% | 2,907 | 9 | City |
| Aurora | 3 | 18,345 | 17,264 | 0.99% | 799 | 23 | City |
| Streetsboro | 4 | 18,155 | 17,320 | 0.77% | 774 | 23 | City |
| Brimfield | 5 | 11,594 | 11,350 | 0.42% | 566 | 20 | Township |
| Ravenna | 6 | 11,196 | 11,315 | -0.18% | 1,988 | 6 | City |
| Ravenna | 7 | 9,275 | 8,983 | 0.57% | 463 | 20 | Township |
| Rootstown | 8 | 8,806 | 8,604 | 0.47% | 333 | 26 | Township |
| Suffield | 9 | 6,099 | 5,978 | 0.43% | 269 | 23 | Township |
| Randolph | 10 | 5,406 | 5,282 | 0.46% | 186 | 29 | Township |
| Shalersville | 11 | 5,360 | 5,248 | 0.43% | 198 | 27 | Township |
| Mantua | 12 | 4,697 | 4,575 | 0.54% | 179 | 26 | Township |
| Mogadore | 13 | 3,823 | 3,811 | 0.05% | 1,783 | 2 | Village |
| Nelson | 14 | 3,160 | 3,097 | 0.41% | 132 | 24 | Township |
| Deerfield | 15 | 2,932 | 2,839 | 0.62% | 125 | 23 | Township |
| Palmyra | 16 | 2,841 | 2,781 | 0.42% | 115 | 25 | Township |
| Freedom | 17 | 2,735 | 2,649 | 0.59% | 115 | 24 | Township |
| Atwater | 18 | 2,609 | 2,562 | 0.38% | 102 | 25 | Township |
| Silver Lake | 19 | 2,506 | 2,514 | -0.04% | 1,762 | 1 | Village |
| Garrettsville | 20 | 2,493 | 2,456 | 0.24% | 981 | 3 | Village |
| Hiram | 21 | 2,444 | 2,399 | 0.37% | 107 | 23 | Township |
| Edinburg | 22 | 2,405 | 2,355 | 0.46% | 100 | 24 | Township |
| Windham | 23 | 1,836 | 1,784 | 0.49% | 83 | 22 | Township |
| Charlestown | 24 | 1,805 | 1,733 | 0.67% | 88 | 21 | Township |
| Windham | 25 | 1,688 | 1,660 | 0.3% | 821 | 2 | Village |
| Boston Heights | 26 | 1,405 | 1,404 | 0% | 201 | 7 | Village |
| Deerfield | 27 | 1,056 | 1,052 | -0.09% | 34 | 31 | Township |
| Mantua | 28 | 1,019 | 1,003 | 0.3% | 717 | 1 | Village |
| Hiram | 29 | 959 | 994 | -0.62% | 875 | 1 | Village |
| Deerfield | 30 | 808 | 826 | -0.49% | 25 | 33 | Township |
| Sugar Bush Knolls | 31 | 219 | 216 | 0.46% | 936 | 0 | Village |
Deerfield is the largest city in Portage County, with a population of 44,721.
Sugar Bush Knolls is the smallest city in Portage County, with a population of 219.
There are 31 cities in Portage County, Ohio.