22 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Coldwater | 1 | 14,849 | 13,824 | 1.4% | 1,539 | 9.65 | City |
| Quincy township | 2 | 3,952 | 4,114 | -1.52% | 112 | 35.24 | Township |
| Coldwater township | 3 | 3,276 | 3,411 | -1.5% | 127 | 25.88 | Township |
| Bronson | 4 | 2,250 | 2,305 | -0.49% | 1,646 | 1.37 | City |
| Algansee township | 5 | 1,956 | 2,032 | -1.46% | 55 | 35.53 | Township |
| Sherwood township | 6 | 1,903 | 1,959 | -1.25% | 55 | 34.67 | Township |
| Girard township | 7 | 1,699 | 1,768 | -1.45% | 48 | 35.10 | Township |
| Union City | 8 | 1,679 | 1,718 | -0.47% | 1,162 | 1.45 | Village |
| Quincy | 9 | 1,516 | 1,556 | -0.52% | 972 | 1.56 | Village |
| Kinderhook township | 10 | 1,395 | 1,431 | -1.2% | 72 | 19.47 | Township |
| Bethel township | 11 | 1,394 | 1,432 | -1.2% | 39 | 35.83 | Township |
| Butler township | 12 | 1,357 | 1,408 | -1.38% | 38 | 35.63 | Township |
| Batavia township | 13 | 1,279 | 1,325 | -1.46% | 36 | 35.73 | Township |
| Bronson township | 14 | 1,239 | 1,293 | -1.59% | 36 | 34.62 | Township |
| California township | 15 | 1,132 | 1,179 | -1.48% | 53 | 21.26 | Township |
| Matteson township | 16 | 1,121 | 1,170 | -1.58% | 31 | 35.77 | Township |
| Coldwater township | 17 | 820 | 802 | 0.24% | 23 | 35.92 | Township |
| Gilead township | 18 | 630 | 654 | -1.41% | 30 | 21.06 | Township |
| Noble township | 19 | 434 | 456 | -1.81% | 21 | 20.96 | Township |
| Quincy township | 20 | 372 | 372 | -0.27% | 103 | 3.63 | Township |
| Montgomery | 21 | 314 | 318 | -0.32% | 314 | 1 | Village |
| Sherwood | 22 | 284 | 284 | 0% | 283 | 1 | Village |
Coldwater is the largest city in Branch County, with a population of 14,849.
Sherwood is the smallest city in Branch County.
There are 22 cities in Branch County, Michigan.