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 |
|---|---|---|---|---|---|---|---|
| Ludington | 1 | 7,581 | 7,644 | -0.21% | 2,256 | 3.4 | City |
| Hamlin township | 2 | 3,739 | 3,706 | -0.27% | 136 | 27.4 | Township |
| Amber township | 3 | 2,551 | 2,532 | -0.31% | 93 | 27.6 | Township |
| Pere Marquette charter township | 4 | 2,407 | 2,419 | -0.58% | 171 | 14.1 | Township |
| Victory township | 5 | 1,415 | 1,405 | -0.28% | 39 | 35.9 | Township |
| Branch township | 6 | 1,411 | 1,402 | -0.28% | 40 | 35.4 | Township |
| Scottville | 7 | 1,356 | 1,354 | 0% | 910 | 1.5 | City |
| Custer township | 8 | 1,317 | 1,320 | -0.68% | 38 | 34.9 | Township |
| Riverton township | 9 | 1,237 | 1,234 | -0.4% | 35 | 35.2 | Township |
| Custer township | 10 | 1,205 | 1,155 | 0.5% | 35 | 34.7 | Township |
| Sherman township | 11 | 1,138 | 1,130 | -0.26% | 31 | 36.2 | Township |
| Custer | 12 | 294 | 293 | 0% | 276 | 1.1 | Village |
| Fountain | 13 | 182 | 180 | 0% | 178 | 1.0 | Village |
| Free Soil | 14 | 150 | 150 | 0% | 145 | 1.0 | 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.
Ludington is the largest city in Mason County.
Free Soil is the smallest city in Mason County.
There are 14 cities in Mason County, Michigan.