There are 43 cities in Sanilac County, Michigan.
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 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lexington township | 1 | 3,453 | 3,462 | -0.17% | 96 | 36.0 | Township |
| Worth township | 2 | 3,446 | 3,468 | -0.29% | 89 | 38.6 | Township |
| Sandusky | 3 | 2,679 | 2,703 | -0.22% | 1,248 | 2.1 | City |
| Cass City | 4 | 2,478 | 2,513 | -0.36% | 1,404 | 1.8 | Village |
| Croswell | 5 | 2,290 | 2,312 | -0.26% | 972 | 2.4 | City |
| Sanilac township | 6 | 2,290 | 2,293 | -0.13% | 56 | 40.8 | Township |
| Yale | 7 | 1,887 | 1,897 | -0.16% | 1,374 | 1.4 | City |
| Marlette | 8 | 1,852 | 1,855 | -0.05% | 1,147 | 1.6 | City |
| Marlette township | 9 | 1,666 | 1,681 | -0.36% | 32 | 52.5 | Township |
| Harbor Beach | 10 | 1,567 | 1,601 | -0.57% | 911 | 1.7 | City |
| Marion township | 11 | 1,557 | 1,568 | -0.32% | 43 | 36.1 | Township |
| Washington township | 12 | 1,515 | 1,522 | -0.2% | 42 | 36.0 | Township |
| Elk township | 13 | 1,495 | 1,512 | -0.53% | 42 | 35.7 | Township |
| Speaker township | 14 | 1,336 | 1,344 | -0.3% | 39 | 34.6 | Township |
| Brown City | 15 | 1,292 | 1,302 | -0.23% | 1,139 | 1.1 | City |
| Watertown township | 16 | 1,244 | 1,251 | -0.24% | 35 | 35.1 | Township |
| Maple Valley township | 17 | 1,164 | 1,175 | -0.43% | 34 | 34.5 | Township |
| Buel township | 18 | 1,162 | 1,161 | -0.09% | 31 | 37.6 | Township |
| Moore township | 19 | 1,091 | 1,104 | -0.46% | 30 | 36.3 | Township |
| Flynn township | 20 | 1,000 | 1,003 | -0.2% | 28 | 35.8 | Township |
| Evergreen township | 21 | 960 | 961 | -0.1% | 27 | 35.4 | Township |
| Fremont township | 22 | 947 | 954 | -0.42% | 27 | 35.0 | Township |
| Lexington | 23 | 929 | 919 | 0.22% | 672 | 1.4 | Village |
| Custer township | 24 | 908 | 901 | 0% | 26 | 35.3 | Township |
| Deckerville | 25 | 876 | 883 | -0.23% | 702 | 1.2 | Village |
| Forester township | 26 | 874 | 877 | -0.23% | 35 | 25.2 | Township |
| Ubly | 27 | 831 | 847 | -0.48% | 632 | 1.3 | Village |
| Greenleaf township | 28 | 810 | 816 | -0.25% | 23 | 35.9 | Township |
| Delaware township | 29 | 776 | 783 | -0.39% | 17 | 46.4 | Township |
| Lamotte township | 30 | 758 | 764 | -0.26% | 21 | 35.5 | Township |
| Bridgehampton township | 31 | 736 | 739 | -0.14% | 20 | 36.1 | Township |
| Elmer township | 32 | 712 | 721 | -0.56% | 20 | 36.3 | Township |
| Argyle township | 33 | 681 | 686 | -0.29% | 19 | 36.3 | Township |
| Austin township | 34 | 609 | 613 | -0.33% | 17 | 36.2 | Township |
| Peck | 35 | 596 | 602 | -0.33% | 573 | 1.0 | Village |
| Port Sanilac | 36 | 566 | 570 | -0.18% | 665 | 0.9 | Village |
| Minden township | 37 | 550 | 554 | -0.36% | 15 | 36.1 | Township |
| Carsonville | 38 | 499 | 502 | -0.2% | 431 | 1.2 | Village |
| Wheatland township | 39 | 415 | 417 | -0.24% | 11 | 36.3 | Township |
| Applegate | 40 | 224 | 227 | -0.44% | 223 | 1.0 | Village |
| Minden City | 41 | 182 | 182 | 0% | 185 | 1.0 | Village |
| Melvin | 42 | 151 | 154 | -0.66% | 156 | 1.0 | Village |
| Forestville | 43 | 84 | 86 | -1.18% | 106 | 0.8 | 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.
Lexington township is the largest city in Sanilac County.
Forestville is the smallest city in Sanilac County.
There are 43 cities in Sanilac County, Michigan.