36 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Deerfield township | 1 | 44,008 | 40,713 | 1.38% | 2,748 | 16.01 | Township |
| Kent | 2 | 27,216 | 28,178 | -0.7% | 2,951 | 9.22 | City |
| Streetsboro | 3 | 18,111 | 17,323 | 0.88% | 772 | 23.46 | City |
| Aurora | 4 | 18,016 | 17,268 | 0.84% | 786 | 22.91 | City |
| Brimfield township | 5 | 11,470 | 11,351 | 0.24% | 560 | 20.49 | Township |
| Ravenna | 6 | 11,147 | 11,316 | -0.3% | 1,979 | 5.63 | City |
| Ravenna township | 7 | 9,172 | 8,983 | 0.46% | 458 | 20.03 | Township |
| Rootstown township | 8 | 8,705 | 8,604 | 0.26% | 329 | 26.42 | Township |
| Suffield township | 9 | 6,030 | 5,978 | 0.2% | 266 | 22.67 | Township |
| Randolph township | 10 | 5,355 | 5,279 | 0.34% | 184 | 29.08 | Township |
| Shalersville township | 11 | 5,300 | 5,247 | 0.23% | 195 | 27.13 | Township |
| Mantua township | 12 | 4,629 | 4,573 | 0.28% | 177 | 26.19 | Township |
| Mogadore | 13 | 3,793 | 3,807 | -0.08% | 1,769 | 2.14 | Village |
| Nelson township | 14 | 3,136 | 3,097 | 0.29% | 131 | 24 | Township |
| Brimfield | 15 | 3,097 | 3,498 | -0.51% | 780 | 3.97 | CDP |
| Deerfield township | 16 | 2,890 | 2,839 | 0.38% | 123 | 23.41 | Township |
| Palmyra township | 17 | 2,809 | 2,781 | 0.21% | 114 | 24.70 | Township |
| Freedom township | 18 | 2,703 | 2,648 | 0.45% | 114 | 23.80 | Township |
| Atwater township | 19 | 2,580 | 2,562 | 0.16% | 101 | 25.50 | Township |
| Silver Lake | 20 | 2,487 | 2,514 | -0.2% | 1,749 | 1.42 | Village |
| Garrettsville | 21 | 2,469 | 2,454 | 0.12% | 972 | 2.54 | Village |
| Hiram township | 22 | 2,422 | 2,397 | 0.25% | 106 | 22.91 | Township |
| Edinburg township | 23 | 2,384 | 2,357 | 0.29% | 99 | 24.09 | Township |
| Windham township | 24 | 1,823 | 1,782 | 0.55% | 82 | 22.25 | Township |
| Charlestown township | 25 | 1,784 | 1,733 | 0.62% | 87 | 20.52 | Township |
| Windham | 26 | 1,673 | 1,660 | 0.18% | 813 | 2.06 | Village |
| Boston Heights | 27 | 1,391 | 1,401 | -0.14% | 199 | 6.99 | Village |
| Sawyerwood | 28 | 1,341 | 1,604 | -0.96% | 1,817 | 0.74 | CDP |
| Suffield | 29 | 1,319 | 1,214 | 7.15% | 487 | 2.71 | CDP |
| Brady Lake | 30 | 1,085 | 933 | 7.11% | 819 | 1.32 | CDP |
| Deerfield township | 31 | 1,068 | 1,051 | 0.38% | 35 | 30.76 | Township |
| Mantua | 32 | 1,012 | 1,004 | 0.2% | 712 | 1.42 | Village |
| Hiram | 33 | 911 | 995 | -1.83% | 831 | 1.10 | Village |
| Deerfield township | 34 | 815 | 827 | -0.24% | 25 | 32.91 | Township |
| Atwater | 35 | 738 | 912 | -0.14% | 705 | 1.05 | CDP |
| Sugar Bush Knolls | 36 | 217 | 216 | 0% | 927 | 0.23 | Village |
Deerfield township is the largest city in Portage County, with a population of 44,008.
Sugar Bush Knolls is the smallest city in Portage County.
There are 36 cities in Portage County, Ohio.