31 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Battle Creek | 1 | 52,080 | 52,704 | -0.24% | 1,222 | 43 | City |
| Bedford | 2 | 32,125 | 31,839 | 0.39% | 819 | 39 | Township |
| Emmett charter | 3 | 11,755 | 11,732 | 0% | 367 | 32 | Township |
| Bedford charter | 4 | 9,156 | 9,195 | 0.02% | 315 | 29 | Township |
| Pennfield charter | 5 | 8,716 | 8,740 | 0.13% | 254 | 34 | Township |
| Albion | 6 | 7,442 | 7,699 | -0.69% | 1,688 | 4 | City |
| Marshall | 7 | 6,792 | 6,839 | -0.15% | 1,046 | 6 | City |
| Springfield | 8 | 5,263 | 5,283 | -0.08% | 1,436 | 4 | City |
| Homer | 9 | 3,972 | 3,985 | -0.35% | 190 | 21 | Township |
| Level Park-Oak Park | 10 | 3,353 | 3,638 | -0.09% | 645 | 5 | CDP |
| Marshall | 11 | 3,196 | 3,143 | 0.57% | 103 | 31 | Township |
| Homer | 12 | 2,923 | 2,897 | 0.1% | 82 | 36 | Township |
| Newton | 13 | 2,824 | 2,784 | 0.43% | 78 | 36 | Township |
| Athens | 14 | 2,463 | 2,440 | 0.49% | 69 | 36 | Township |
| Marengo | 15 | 2,251 | 2,203 | 0.67% | 64 | 35 | Township |
| Burlington | 16 | 1,988 | 1,957 | 0.15% | 56 | 36 | Township |
| Clarence | 17 | 1,909 | 1,899 | 0.32% | 59 | 33 | Township |
| Brownlee Park | 18 | 1,887 | 1,964 | -0.79% | 933 | 2 | CDP |
| South Gull Lake | 19 | 1,686 | 1,615 | 2.06% | 1,248 | 1 | CDP |
| Tekonsha | 20 | 1,641 | 1,520 | 3.53% | 46 | 35 | Township |
| Homer | 21 | 1,621 | 1,593 | 0.31% | 1,162 | 1 | Village |
| Fredonia | 22 | 1,593 | 1,588 | 0.13% | 47 | 34 | Township |
| Convis | 23 | 1,544 | 1,505 | 1.05% | 44 | 35 | Township |
| Burlington | 24 | 1,423 | 1,412 | 0.07% | 41 | 35 | Township |
| Eckford | 25 | 1,279 | 1,297 | -0.16% | 36 | 35 | Township |
| Clarendon | 26 | 1,191 | 1,182 | 0.25% | 34 | 36 | Township |
| Albion | 27 | 1,090 | 1,092 | 0% | 33 | 33 | Township |
| Lee | 28 | 1,066 | 1,059 | 0.28% | 29 | 36 | Township |
| Athens | 29 | 954 | 967 | -0.31% | 947 | 1 | Village |
| Tekonsha | 30 | 738 | 671 | 1.79% | 743 | 1 | Village |
| Burlington | 31 | 305 | 302 | 0% | 401 | 1 | Village |
Battle Creek is the largest city in Calhoun County, with a population of 52,080.
Burlington is the smallest city in Calhoun County, with a population of 305.
There are 31 cities in Calhoun County, Michigan.