63 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mentor | 1 | 47,034 | 47,428 | -0.17% | 1,692 | 28 | City |
| Perry | 2 | 28,337 | 28,290 | 0.24% | 1,245 | 23 | Township |
| Madison | 3 | 26,999 | 25,956 | 0.99% | 684 | 39 | Township |
| Willoughby | 4 | 24,292 | 23,870 | 0.35% | 2,373 | 10 | City |
| Painesville | 5 | 20,752 | 20,290 | 0.45% | 3,041 | 7 | City |
| Painesville | 6 | 20,473 | 20,482 | 0.19% | 1,220 | 17 | Township |
| Concord | 7 | 19,272 | 19,259 | 0.21% | 837 | 23 | Township |
| Madison | 8 | 18,495 | 18,495 | 0.18% | 427 | 43 | Township |
| Eastlake | 9 | 17,365 | 17,653 | -0.33% | 2,710 | 6 | City |
| Perry | 10 | 15,948 | 16,280 | -0.25% | 1,013 | 16 | Township |
| Willowick | 11 | 14,142 | 14,225 | -0.12% | 5,574 | 3 | City |
| Wickliffe | 12 | 12,655 | 12,674 | -0.03% | 2,746 | 5 | City |
| Madison | 13 | 11,074 | 11,102 | -0.08% | 733 | 15 | Township |
| Willoughby Hills | 14 | 9,978 | 10,016 | -0.08% | 927 | 11 | City |
| Madison | 15 | 8,931 | 8,558 | 1.18% | 254 | 35 | Township |
| Perry | 16 | 8,857 | 8,864 | 0.18% | 380 | 23 | Township |
| Madison | 17 | 6,527 | 6,452 | 0.45% | 190 | 34 | Township |
| Perry | 18 | 6,194 | 6,517 | -0.64% | 243 | 25 | Township |
| Perry | 19 | 5,872 | 5,850 | 0.29% | 161 | 37 | Township |
| Perry | 20 | 4,771 | 4,659 | 1.04% | 82 | 58 | Township |
| Perry | 21 | 3,833 | 3,910 | 0.24% | 1,851 | 2 | Township |
| Madison | 22 | 3,796 | 3,896 | -0.42% | 73 | 52 | Township |
| Madison | 23 | 3,580 | 3,588 | 0.08% | 135 | 27 | Township |
| Madison | 24 | 3,460 | 3,337 | 0.61% | 157 | 22 | Township |
| Madison | 25 | 3,421 | 3,434 | -0.09% | 672 | 5 | Village |
| Perry | 26 | 3,332 | 3,374 | -0.03% | 102 | 33 | Township |
| Leroy | 27 | 3,129 | 3,132 | 0.13% | 123 | 25 | Township |
| Fairport Harbor | 28 | 3,082 | 3,109 | -0.19% | 3,001 | 1 | Village |
| Madison | 29 | 2,829 | 2,881 | -0.25% | 79 | 36 | Township |
| Perry | 30 | 2,771 | 2,739 | 0.29% | 108 | 26 | Township |
| Madison | 31 | 2,518 | 2,536 | 0.12% | 61 | 41 | Township |
| Perry | 32 | 2,350 | 2,407 | -0.51% | 56 | 42 | Township |
| Madison | 33 | 2,111 | 2,106 | 0.14% | 47 | 45 | Township |
| Perry | 34 | 2,001 | 1,995 | 0.35% | 66 | 30 | Township |
| Perry | 35 | 1,994 | 1,969 | 0.4% | 95 | 21 | Township |
| Madison | 36 | 1,830 | 1,732 | 1.55% | 75 | 24 | Township |
| Madison | 37 | 1,793 | 1,767 | 0.5% | 61 | 29 | Township |
| Perry | 38 | 1,742 | 1,655 | 0.81% | 70 | 25 | Township |
| Perry | 39 | 1,600 | 1,605 | -0.06% | 705 | 2 | Village |
| Perry | 40 | 1,582 | 1,570 | 0.13% | 45 | 35 | Township |
| Perry | 41 | 1,491 | 1,504 | -0.2% | 39 | 38 | Township |
| Perry | 42 | 1,453 | 1,457 | 0% | 81 | 18 | Township |
| Madison | 43 | 1,395 | 1,379 | 0.29% | 60 | 23 | Township |
| Perry | 44 | 1,325 | 1,263 | 1.45% | 36 | 37 | Township |
| Madison | 45 | 1,081 | 1,104 | -0.46% | 31 | 35 | Township |
| Perry | 46 | 1,080 | 1,102 | -0.55% | 38 | 29 | Township |
| Perry | 47 | 1,000 | 997 | 0.3% | 33 | 30 | Township |
| Madison | 48 | 997 | 997 | 0.3% | 40 | 25 | Township |
| Perry | 49 | 965 | 964 | 0.31% | 34 | 28 | Township |
| Perry | 50 | 963 | 967 | 0.1% | 36 | 27 | Township |
| Perry | 51 | 907 | 902 | 0.44% | 40 | 23 | Township |
| Madison | 52 | 892 | 907 | -0.11% | 32 | 28 | Township |
| Perry | 53 | 878 | 900 | -1.24% | 32 | 28 | Township |
| Madison | 54 | 828 | 847 | -0.24% | 36 | 23 | Township |
| Perry | 55 | 667 | 662 | 0.15% | 26 | 26 | Township |
| Timberlake | 56 | 605 | 625 | -0.66% | 2,867 | 0 | Village |
| Madison | 57 | 545 | 552 | 0.37% | 22 | 24 | Township |
| Madison | 58 | 481 | 475 | 0% | 17 | 28 | Township |
| Perry | 59 | 437 | 446 | -0.46% | 17 | 26 | Township |
| Perry | 60 | 412 | 426 | -0.96% | 17 | 24 | Township |
| Grand River | 61 | 392 | 396 | -0.25% | 668 | 1 | Village |
| Lakeline | 62 | 209 | 217 | -0.95% | 2,375 | 0 | Village |
| Perry | 63 | 4 | 4 | 0% | 20 | 0 | Township |
Mentor is the largest city in Lake County, with a population of 47,034.
Perry is the smallest city in Lake County, with a population of 4.
There are 63 cities in Lake County, Ohio.