63 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mentor | 1 | 46,955 | 47,428 | -0.17% | 1,689 | 28 | City |
| Perry | 2 | 28,404 | 28,290 | 0.24% | 1,248 | 23 | Township |
| Madison | 3 | 27,264 | 25,956 | 0.98% | 690 | 39 | Township |
| Willoughby | 4 | 24,377 | 23,870 | 0.35% | 2,381 | 10 | City |
| Painesville | 5 | 20,845 | 20,290 | 0.45% | 3,054 | 7 | City |
| Painesville | 6 | 20,512 | 20,482 | 0.19% | 1,222 | 17 | Township |
| Concord | 7 | 19,313 | 19,259 | 0.21% | 839 | 23 | Township |
| Madison | 8 | 18,528 | 18,495 | 0.18% | 427 | 43 | Township |
| Eastlake | 9 | 17,308 | 17,653 | -0.33% | 2,701 | 6 | City |
| Perry | 10 | 15,908 | 16,280 | -0.25% | 1,010 | 16 | Township |
| Willowick | 11 | 14,126 | 14,225 | -0.11% | 5,568 | 3 | City |
| Wickliffe | 12 | 12,651 | 12,674 | -0.03% | 2,745 | 5 | City |
| Madison | 13 | 11,065 | 11,102 | -0.08% | 732 | 15 | Township |
| Willoughby Hills | 14 | 9,971 | 10,016 | -0.07% | 927 | 11 | City |
| Madison | 15 | 9,035 | 8,558 | 1.16% | 257 | 35 | Township |
| Perry | 16 | 8,873 | 8,864 | 0.18% | 380 | 23 | Township |
| Madison | 17 | 6,556 | 6,452 | 0.44% | 191 | 34 | Township |
| Perry | 18 | 6,154 | 6,517 | -0.65% | 242 | 25 | Township |
| Perry | 19 | 5,889 | 5,850 | 0.29% | 161 | 37 | Township |
| Perry | 20 | 4,820 | 4,659 | 1.03% | 83 | 58 | Township |
| Perry | 21 | 3,842 | 3,910 | 0.23% | 1,855 | 2 | Township |
| Madison | 22 | 3,780 | 3,896 | -0.42% | 73 | 52 | Township |
| Madison | 23 | 3,583 | 3,588 | 0.08% | 135 | 27 | Township |
| Madison | 24 | 3,481 | 3,337 | 0.61% | 158 | 22 | Township |
| Madison | 25 | 3,419 | 3,434 | -0.06% | 672 | 5 | Village |
| Perry | 26 | 3,331 | 3,374 | -0.03% | 102 | 33 | Township |
| Leroy | 27 | 3,133 | 3,132 | 0.13% | 123 | 25 | Township |
| Fairport Harbor | 28 | 3,077 | 3,109 | -0.16% | 2,996 | 1 | Village |
| Madison | 29 | 2,822 | 2,881 | -0.25% | 79 | 36 | Township |
| Perry | 30 | 2,779 | 2,739 | 0.29% | 109 | 26 | Township |
| Madison | 31 | 2,521 | 2,536 | 0.12% | 61 | 41 | Township |
| Perry | 32 | 2,338 | 2,407 | -0.51% | 56 | 42 | Township |
| Madison | 33 | 2,114 | 2,106 | 0.14% | 47 | 45 | Township |
| Perry | 34 | 2,008 | 1,995 | 0.35% | 66 | 30 | Township |
| Perry | 35 | 2,002 | 1,969 | 0.4% | 96 | 21 | Township |
| Madison | 36 | 1,858 | 1,732 | 1.53% | 76 | 24 | Township |
| Madison | 37 | 1,802 | 1,767 | 0.5% | 61 | 29 | Township |
| Perry | 38 | 1,756 | 1,655 | 0.8% | 70 | 25 | Township |
| Perry | 39 | 1,599 | 1,605 | -0.06% | 704 | 2 | Village |
| Perry | 40 | 1,584 | 1,570 | 0.13% | 45 | 35 | Township |
| Perry | 41 | 1,488 | 1,504 | -0.2% | 39 | 38 | Township |
| Perry | 42 | 1,453 | 1,457 | 0% | 81 | 18 | Township |
| Madison | 43 | 1,399 | 1,379 | 0.29% | 60 | 23 | Township |
| Perry | 44 | 1,344 | 1,263 | 1.43% | 37 | 37 | Township |
| Madison | 45 | 1,076 | 1,104 | -0.46% | 30 | 35 | Township |
| Perry | 46 | 1,074 | 1,102 | -0.56% | 37 | 29 | Township |
| Perry | 47 | 1,003 | 997 | 0.3% | 34 | 30 | Township |
| Madison | 48 | 1,000 | 997 | 0.3% | 40 | 25 | Township |
| Perry | 49 | 968 | 964 | 0.31% | 34 | 28 | Township |
| Perry | 50 | 964 | 967 | 0.1% | 36 | 27 | Township |
| Perry | 51 | 911 | 902 | 0.44% | 40 | 23 | Township |
| Madison | 52 | 891 | 907 | -0.11% | 32 | 28 | Township |
| Perry | 53 | 867 | 900 | -1.25% | 31 | 28 | Township |
| Madison | 54 | 826 | 847 | -0.24% | 36 | 23 | Township |
| Perry | 55 | 668 | 662 | 0.15% | 26 | 26 | Township |
| Timberlake | 56 | 601 | 625 | -0.66% | 2,848 | 0 | Village |
| Madison | 57 | 547 | 552 | 0.37% | 22 | 24 | Township |
| Madison | 58 | 481 | 475 | 0% | 17 | 28 | Township |
| Perry | 59 | 435 | 446 | -0.46% | 17 | 26 | Township |
| Perry | 60 | 408 | 426 | -0.97% | 17 | 24 | Township |
| Grand River | 61 | 391 | 396 | -0.26% | 666 | 1 | Village |
| Lakeline | 62 | 208 | 217 | -0.48% | 2,364 | 0 | Village |
| Perry | 63 | 4 | 4 | 0% | 20 | 0 | Township |
Mentor is the largest city in Lake County, with a population of 46,955.
Perry is the smallest city in Lake County, with a population of 4.
There are 63 cities in Lake County, Ohio.