34 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Saginaw | 1 | 42,722 | 44,114 | -0.65% | 2,458 | 17 | City |
| Saginaw charter | 2 | 40,935 | 41,624 | -0.15% | 1,671 | 24 | Township |
| Thomas | 3 | 11,957 | 11,918 | 0.3% | 388 | 31 | Township |
| Tittabawassee | 4 | 11,013 | 10,606 | 0.74% | 313 | 35 | Township |
| Bridgeport charter | 5 | 9,853 | 10,082 | -0.25% | 285 | 35 | Township |
| Buena Vista charter | 6 | 7,462 | 7,646 | -0.29% | 210 | 35 | Township |
| Birch Run | 7 | 5,845 | 5,882 | 0.05% | 165 | 36 | Township |
| Carrollton | 8 | 5,579 | 5,734 | -0.34% | 1,667 | 3 | Township |
| Frankenmuth | 9 | 5,222 | 5,034 | 0.71% | 1,674 | 3 | City |
| Kochville | 10 | 5,166 | 4,901 | 1.99% | 278 | 19 | Township |
| Chesaning | 11 | 4,634 | 4,739 | -0.37% | 135 | 34 | Township |
| Taymouth | 12 | 4,033 | 4,064 | 0.27% | 114 | 35 | Township |
| St. Charles | 13 | 3,118 | 3,179 | -0.1% | 85 | 36 | Township |
| Maple Grove | 14 | 2,641 | 2,672 | 0% | 74 | 36 | Township |
| Swan Creek | 15 | 2,425 | 2,415 | 0.46% | 106 | 23 | Township |
| Chesaning | 16 | 2,386 | 2,454 | -0.58% | 775 | 3 | Village |
| Brady | 17 | 2,144 | 2,139 | 0.23% | 58 | 37 | Township |
| Albee | 18 | 2,018 | 2,044 | -0.05% | 56 | 36 | Township |
| St. Charles | 19 | 1,932 | 1,996 | -0.67% | 923 | 2 | Village |
| Spaulding | 20 | 1,914 | 1,973 | -0.42% | 74 | 26 | Township |
| Frankenmuth | 21 | 1,890 | 1,883 | 0.48% | 59 | 32 | Township |
| Blumfield | 22 | 1,846 | 1,868 | 0.16% | 52 | 36 | Township |
| Brant | 23 | 1,819 | 1,839 | 0% | 49 | 37 | Township |
| James | 24 | 1,745 | 1,791 | -0.29% | 104 | 17 | Township |
| Jonesfield | 25 | 1,593 | 1,617 | 0% | 63 | 25 | Township |
| Birch Run | 26 | 1,531 | 1,556 | -0.33% | 813 | 2 | Village |
| Chapin | 27 | 930 | 925 | 0.11% | 38 | 25 | Township |
| Lakefield | 28 | 875 | 891 | -0.46% | 36 | 24 | Township |
| Merrill | 29 | 773 | 745 | 0.52% | 22 | 35 | Township |
| Burt | 30 | 717 | 712 | -0.55% | 36 | 20 | Township |
| Merrill | 31 | 667 | 686 | -0.6% | 960 | 1 | Village |
| Burt | 32 | 403 | 407 | -0.25% | 2 | 230 | Township |
| Oakley | 33 | 289 | 288 | 0% | 280 | 1 | Village |
| Zilwaukee | 34 | 60 | 61 | 0% | 17 | 4 | Township |
Saginaw is the largest city in Saginaw County, with a population of 42,722.
Zilwaukee is the smallest city in Saginaw County, with a population of 60.
There are 34 cities in Saginaw County, Michigan.