17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kent | 1 | 27,216 | 28,178 | -0.7% | 2,951 | 9.22 | City |
| Streetsboro | 2 | 18,111 | 17,323 | 0.88% | 772 | 23.46 | City |
| Aurora | 3 | 18,016 | 17,268 | 0.84% | 786 | 22.91 | City |
| Ravenna | 4 | 11,147 | 11,316 | -0.3% | 1,979 | 5.63 | City |
| Mogadore | 5 | 3,793 | 3,807 | -0.08% | 1,769 | 2.14 | Village |
| Brimfield | 6 | 3,097 | 3,498 | -0.51% | 780 | 3.97 | CDP |
| Silver Lake | 7 | 2,487 | 2,514 | -0.2% | 1,749 | 1.42 | Village |
| Garrettsville | 8 | 2,469 | 2,454 | 0.12% | 972 | 2.54 | Village |
| Windham | 9 | 1,673 | 1,660 | 0.18% | 813 | 2.06 | Village |
| Boston Heights | 10 | 1,391 | 1,401 | -0.14% | 199 | 6.99 | Village |
| Sawyerwood | 11 | 1,341 | 1,604 | -0.96% | 1,817 | 0.74 | CDP |
| Suffield | 12 | 1,319 | 1,214 | 7.15% | 487 | 2.71 | CDP |
| Brady Lake | 13 | 1,085 | 933 | 7.11% | 819 | 1.32 | CDP |
| Mantua | 14 | 1,012 | 1,004 | 0.2% | 712 | 1.42 | Village |
| Hiram | 15 | 911 | 995 | -1.83% | 831 | 1.10 | Village |
| Atwater | 16 | 738 | 912 | -0.14% | 705 | 1.05 | CDP |
| Sugar Bush Knolls | 17 | 217 | 216 | 0% | 927 | 0.23 | Village |
Kent is the largest city in Portage County, with a population of 27,216.
Sugar Bush Knolls is the smallest city in Portage County.
There are 17 cities in Portage County, Ohio.