| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Saginaw | 1 | 42,589 | 44,110 | -0.64% | 2,450 | 17 | City |
| Saginaw | 2 | 40,928 | 41,623 | -0.08% | 1,671 | 24 | Township |
| Thomas | 3 | 11,892 | 11,915 | -0.07% | 386 | 31 | Township |
| Tittabawassee | 4 | 11,081 | 10,611 | 0.67% | 315 | 35 | Township |
| Bridgeport | 5 | 9,856 | 10,084 | -0.18% | 285 | 35 | Township |
| Buena Vista | 6 | 7,459 | 7,641 | -0.19% | 210 | 35 | Township |
| Birch Run | 7 | 5,862 | 5,882 | 0.15% | 165 | 36 | Township |
| Carrollton | 8 | 5,570 | 5,734 | -0.27% | 1,665 | 3 | Township |
| Kochville | 9 | 5,237 | 4,877 | 1.37% | 282 | 19 | Township |
| Frankenmuth | 10 | 5,232 | 5,034 | 0.67% | 1,677 | 3 | City |
| Chesaning | 11 | 4,649 | 4,743 | -0.11% | 136 | 34 | Township |
| Taymouth | 12 | 4,047 | 4,067 | 0.25% | 114 | 35 | Township |
| St. Charles | 13 | 3,111 | 3,176 | -0.13% | 85 | 36 | Township |
| Maple Grove | 14 | 2,649 | 2,672 | 0.11% | 74 | 36 | Township |
| Swan Creek | 15 | 2,404 | 2,413 | -0.21% | 105 | 23 | Township |
| Chesaning | 16 | 2,385 | 2,457 | -0.58% | 774 | 3 | Village |
| Brady | 17 | 2,140 | 2,139 | 0.09% | 58 | 37 | Township |
| Albee | 18 | 2,022 | 2,044 | -0.05% | 56 | 36 | Township |
| St. Charles | 19 | 1,929 | 1,995 | -0.62% | 922 | 2 | Village |
| Spaulding | 20 | 1,909 | 1,970 | -0.26% | 74 | 26 | Township |
| Frankenmuth | 21 | 1,869 | 1,879 | -0.16% | 58 | 32 | Township |
| Blumfield | 22 | 1,847 | 1,875 | -0.05% | 52 | 36 | Township |
| Brant | 23 | 1,810 | 1,839 | -0.22% | 49 | 37 | Township |
| James | 24 | 1,743 | 1,791 | -0.17% | 104 | 17 | Township |
| Jonesfield | 25 | 1,598 | 1,615 | 0.31% | 63 | 25 | Township |
| Birch Run | 26 | 1,535 | 1,558 | -0.32% | 815 | 2 | Village |
| Chapin | 27 | 927 | 925 | 0.11% | 38 | 25 | Township |
| Lakefield | 28 | 873 | 891 | -0.46% | 36 | 24 | Township |
| Merrill | 29 | 765 | 743 | 0.26% | 22 | 35 | Township |
| Burt | 30 | 718 | 719 | -0.55% | 36 | 20 | Township |
| Merrill | 31 | 665 | 686 | -0.6% | 957 | 1 | Village |
| Burt | 32 | 399 | 406 | -0.5% | 2.0 | 230 | Township |
| Oakley | 33 | 290 | 287 | 0% | 281 | 1 | Village |
| Zilwaukee | 34 | 61 | 62 | 0% | 17 | 4 | Township |
Saginaw is the largest city in Saginaw County, with a population of 42,589.
Zilwaukee is the smallest city in Saginaw County, with a population of 61.
There are 34 cities in Saginaw County, Michigan.