54 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| DeWitt charter | 1 | 15,400 | 15,095 | 0.01% | 548 | 28 | Township |
| DeWitt charter | 2 | 15,400 | 15,121 | 0.01% | 548 | 28 | Township |
| Bath charter | 3 | 13,598 | 13,291 | 0.57% | 413 | 33 | Township |
| Bath charter | 4 | 13,598 | 13,307 | 0.57% | 413 | 33 | Township |
| St. Johns | 5 | 7,729 | 7,702 | 0.08% | 1,835 | 4 | City |
| St. Johns | 6 | 7,729 | 7,699 | 0.08% | 1,835 | 4 | City |
| Watertown charter | 7 | 5,872 | 5,563 | 1.05% | 165 | 36 | Township |
| Watertown charter | 8 | 5,872 | 5,570 | 1.05% | 165 | 36 | Township |
| DeWitt | 9 | 4,781 | 4,768 | 0.02% | 1,685 | 3 | City |
| DeWitt | 10 | 4,781 | 4,775 | 0.02% | 1,685 | 3 | City |
| Eureka | 11 | 4,417 | 4,212 | 1.1% | 154 | 29 | Township |
| Eureka | 12 | 4,417 | 4,213 | 1.1% | 154 | 29 | Township |
| Victor | 13 | 3,484 | 3,462 | 0.26% | 103 | 34 | Township |
| Victor | 14 | 3,484 | 3,462 | 0.26% | 103 | 34 | Township |
| Bath | 15 | 3,396 | 3,110 | 2.66% | 580 | 6 | CDP |
| Bingham | 16 | 2,962 | 2,913 | 0.44% | 92 | 32 | Township |
| Bingham | 17 | 2,962 | 2,914 | 0.44% | 92 | 32 | Township |
| Eagle | 18 | 2,799 | 2,774 | 0.25% | 81 | 35 | Township |
| Eagle | 19 | 2,799 | 2,775 | 0.25% | 81 | 35 | Township |
| Olive | 20 | 2,549 | 2,537 | 0.2% | 72 | 36 | Township |
| Olive | 21 | 2,549 | 2,536 | 0.2% | 72 | 36 | Township |
| Westphalia | 22 | 2,445 | 2,439 | 0.12% | 69 | 36 | Township |
| Westphalia | 23 | 2,445 | 2,438 | 0.12% | 69 | 36 | Township |
| Dallas | 24 | 2,426 | 2,414 | 0.25% | 67 | 36 | Township |
| Dallas | 25 | 2,426 | 2,412 | 0.25% | 67 | 36 | Township |
| Duplain | 26 | 2,313 | 2,304 | 0.17% | 66 | 35 | Township |
| Duplain | 27 | 2,313 | 2,303 | 0.17% | 66 | 35 | Township |
| Ovid | 28 | 2,239 | 2,166 | 1.45% | 67 | 33 | Township |
| Ovid | 29 | 2,239 | 2,167 | 1.45% | 67 | 33 | Township |
| Ovid | 30 | 2,203 | 2,190 | 0.14% | 63 | 35 | Township |
| Ovid | 31 | 2,203 | 2,189 | 0.14% | 63 | 35 | Township |
| Riley | 32 | 2,027 | 2,013 | 0.3% | 57 | 36 | Township |
| Riley | 33 | 2,027 | 2,012 | 0.3% | 57 | 36 | Township |
| Wacousta | 34 | 1,875 | 1,698 | 1.57% | 210 | 9 | CDP |
| Essex | 35 | 1,841 | 1,831 | 0.16% | 52 | 35 | Township |
| Essex | 36 | 1,841 | 1,831 | 0.16% | 52 | 35 | Township |
| Ovid | 37 | 1,490 | 1,482 | 0.07% | 1,475 | 1 | City |
| Ovid | 38 | 1,490 | 1,482 | 0.07% | 1,475 | 1 | City |
| Fowler | 39 | 1,234 | 1,233 | 0% | 962 | 1 | Village |
| Fowler | 40 | 1,234 | 1,233 | 0% | 962 | 1 | Village |
| Bengal | 41 | 1,135 | 1,131 | 0.18% | 31 | 37 | Township |
| Bengal | 42 | 1,135 | 1,132 | 0.18% | 31 | 37 | Township |
| Lake Victoria | 43 | 955 | 810 | 0.21% | 1,162 | 1 | CDP |
| Elsie | 44 | 948 | 944 | 0.11% | 830 | 1 | Village |
| Elsie | 45 | 948 | 943 | 0.11% | 830 | 1 | Village |
| Westphalia | 46 | 944 | 941 | 0.11% | 847 | 1 | Village |
| Westphalia | 47 | 944 | 939 | 0.11% | 847 | 1 | Village |
| Lebanon | 48 | 598 | 596 | 0.34% | 17 | 35 | Township |
| Lebanon | 49 | 598 | 595 | 0.34% | 17 | 35 | Township |
| Maple Rapids | 50 | 584 | 580 | 0.17% | 428 | 1 | Village |
| Maple Rapids | 51 | 584 | 579 | 0.17% | 428 | 1 | Village |
| Eureka | 52 | 129 | 153 | 7.5% | 128 | 1 | CDP |
| Eagle | 53 | 104 | 103 | 0% | 832 | 0 | Village |
| Eagle | 54 | 104 | 103 | 0% | 832 | 0 | Village |
DeWitt charter is the largest city in Clinton County, with a population of 15,400.
Eagle is the smallest city in Clinton County, with a population of 104.
There are 54 cities in Clinton County, Michigan.