Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Flint | 1 | 79,177 | 81,113 | -0.61% | 2,368 | 33.4 | City |
| Grand Blanc charter township | 2 | 39,974 | 39,873 | 0.24% | 1,223 | 32.7 | Township |
| Flint charter township | 3 | 30,817 | 31,392 | -0.3% | 1,335 | 23.1 | Township |
| Burton | 4 | 29,279 | 29,665 | -0.33% | 1,254 | 23.4 | City |
| Davison township | 5 | 20,348 | 20,442 | -0.15% | 611 | 33.3 | Township |
| Genesee charter township | 6 | 20,256 | 20,544 | -0.14% | 697 | 29.1 | Township |
| Mount Morris township | 7 | 19,548 | 19,978 | -0.34% | 620 | 31.5 | Township |
| Fenton charter township | 8 | 17,217 | 16,886 | 0.51% | 723 | 23.8 | Township |
| Mundy township | 9 | 15,425 | 15,291 | 0.53% | 428 | 36.0 | Township |
| Vienna charter township | 10 | 13,046 | 13,288 | -0.18% | 373 | 35.0 | Township |
| Fenton | 11 | 11,807 | 12,030 | -0.47% | 1,775 | 6.7 | City |
| Flushing charter township | 12 | 10,531 | 10,678 | -0.14% | 336 | 31.4 | Township |
| Richfield township | 13 | 8,956 | 8,987 | 0.13% | 255 | 35.1 | Township |
| Atlas township | 14 | 8,288 | 8,339 | 0.16% | 235 | 35.2 | Township |
| Flushing | 15 | 8,191 | 8,398 | -0.63% | 2,268 | 3.6 | City |
| Grand Blanc | 16 | 7,875 | 8,073 | -0.63% | 2,180 | 3.6 | City |
| Clayton charter township | 17 | 7,351 | 7,453 | -0.14% | 215 | 34.2 | Township |
| Argentine township | 18 | 6,986 | 7,070 | -0.07% | 202 | 34.7 | Township |
| Gaines township | 19 | 6,605 | 6,660 | -0.23% | 188 | 35.1 | Township |
| Thetford township | 20 | 6,494 | 6,624 | -0.26% | 188 | 34.5 | Township |
| Montrose charter township | 21 | 5,925 | 5,994 | -0.05% | 173 | 34.2 | Township |
| Swartz Creek | 22 | 5,824 | 5,887 | -0.27% | 1,390 | 4.2 | City |
| Davison | 23 | 5,030 | 5,132 | -0.51% | 2,533 | 2.0 | City |
| Forest township | 24 | 4,360 | 4,446 | -0.34% | 122 | 35.7 | Township |
| Linden | 25 | 4,165 | 4,145 | 0.12% | 1,769 | 2.4 | City |
| Mount Morris | 26 | 3,068 | 3,163 | -0.78% | 2,672 | 1.1 | City |
| Clio | 27 | 2,454 | 2,521 | -0.69% | 2,215 | 1.1 | City |
| Goodrich | 28 | 2,019 | 2,019 | 0% | 920 | 2.2 | Village |
| Montrose | 29 | 1,699 | 1,739 | -0.58% | 1,739 | 1.0 | City |
| Otisville | 30 | 803 | 817 | -0.5% | 911 | 0.9 | Village |
| Lennon | 31 | 470 | 478 | -0.42% | 515 | 0.9 | Village |
| Gaines | 32 | 373 | 376 | -0.27% | 997 | 0.4 | Village |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Flint is the largest city in Genesee County.
Gaines is the smallest city in Genesee County.
There are 32 cities in Genesee County, Michigan.