37 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Flint | 1 | 78,693 | 81,113 | -0.61% | 2,353 | 33.44 | City |
| Grand Blanc charter township | 2 | 40,070 | 39,873 | 0.24% | 1,226 | 32.69 | Township |
| Flint charter township | 3 | 30,724 | 31,392 | -0.3% | 1,331 | 23.09 | Township |
| Burton | 4 | 29,183 | 29,665 | -0.33% | 1,249 | 23.36 | City |
| Davison township | 5 | 20,318 | 20,442 | -0.15% | 610 | 33.31 | Township |
| Genesee charter township | 6 | 20,227 | 20,544 | -0.14% | 696 | 29.06 | Township |
| Mount Morris township | 7 | 19,482 | 19,978 | -0.34% | 618 | 31.55 | Township |
| Fenton charter township | 8 | 17,304 | 16,886 | 0.51% | 727 | 23.82 | Township |
| Mundy township | 9 | 15,506 | 15,291 | 0.53% | 430 | 36.03 | Township |
| Vienna charter township | 10 | 13,023 | 13,288 | -0.18% | 372 | 34.99 | Township |
| Fenton | 11 | 11,751 | 12,030 | -0.47% | 1,767 | 6.65 | City |
| Flushing charter township | 12 | 10,516 | 10,678 | -0.14% | 335 | 31.39 | Township |
| Richfield township | 13 | 8,968 | 8,987 | 0.13% | 256 | 35.06 | Township |
| Beecher | 14 | 8,798 | 9,168 | -1.08% | 1,496 | 5.88 | CDP |
| Atlas township | 15 | 8,301 | 8,339 | 0.16% | 236 | 35.22 | Township |
| Flushing | 16 | 8,139 | 8,398 | -0.63% | 2,254 | 3.61 | City |
| Grand Blanc | 17 | 7,826 | 8,073 | -0.62% | 2,167 | 3.61 | City |
| Clayton charter township | 18 | 7,341 | 7,453 | -0.14% | 215 | 34.16 | Township |
| Argentine township | 19 | 6,981 | 7,070 | -0.07% | 201 | 34.66 | Township |
| Gaines township | 20 | 6,590 | 6,660 | -0.23% | 188 | 35.09 | Township |
| Lake Fenton | 21 | 6,505 | 5,631 | 0.98% | 1,179 | 5.52 | CDP |
| Thetford township | 22 | 6,477 | 6,624 | -0.26% | 187 | 34.55 | Township |
| Montrose charter township | 23 | 5,922 | 5,994 | -0.05% | 173 | 34.25 | Township |
| Swartz Creek | 24 | 5,808 | 5,887 | -0.27% | 1,386 | 4.19 | City |
| Davison | 25 | 5,005 | 5,132 | -0.5% | 2,520 | 1.99 | City |
| Forest township | 26 | 4,345 | 4,446 | -0.34% | 122 | 35.70 | Township |
| Linden | 27 | 4,170 | 4,145 | 0.12% | 1,771 | 2.35 | City |
| Mount Morris | 28 | 3,044 | 3,163 | -0.78% | 2,652 | 1.15 | City |
| Clio | 29 | 2,437 | 2,521 | -0.69% | 2,199 | 1.11 | City |
| Argentine | 30 | 2,433 | 2,409 | -0.25% | 1,027 | 2.37 | CDP |
| Goodrich | 31 | 2,019 | 2,019 | 0% | 920 | 2.19 | Village |
| Montrose | 32 | 1,689 | 1,739 | -0.59% | 1,729 | 0.98 | City |
| Otisville | 33 | 800 | 817 | -0.37% | 908 | 0.88 | Village |
| Barnes Lake | 34 | 778 | 651 | 7.16% | 503 | 1.55 | CDP |
| Millers Lake | 35 | 564 | 656 | 7.22% | 374 | 1.51 | CDP |
| Lennon | 36 | 468 | 478 | -0.43% | 513 | 0.91 | Village |
| Gaines | 37 | 372 | 376 | -0.27% | 995 | 0.37 | Village |
Flint is the largest city in Genesee County, with a population of 78,693.
Gaines is the smallest city in Genesee County.
There are 37 cities in Genesee County, Michigan.