| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Battle Creek | 1 | 51,887 | 52,707 | -0.26% | 1,218 | 43 | City |
| Bedford | 2 | 32,068 | 31,832 | 0.17% | 818 | 39 | Township |
| Emmett | 3 | 11,688 | 11,723 | -0.2% | 365 | 32 | Township |
| Bedford | 4 | 9,131 | 9,191 | -0.15% | 314 | 29 | Township |
| Pennfield | 5 | 8,667 | 8,736 | -0.16% | 253 | 34 | Township |
| Albion | 6 | 7,419 | 7,699 | -0.74% | 1,682 | 4 | City |
| Marshall | 7 | 6,786 | 6,862 | -0.21% | 769 | 9 | City |
| Springfield | 8 | 5,240 | 5,279 | -0.11% | 1,430 | 4 | City |
| Homer | 9 | 3,926 | 3,986 | -0.66% | 188 | 21 | Township |
| Marshall | 10 | 3,181 | 3,122 | 0.6% | 102 | 31 | Township |
| Homer | 11 | 2,892 | 2,896 | -0.17% | 81 | 36 | Township |
| Newton | 12 | 2,797 | 2,785 | -0.11% | 78 | 36 | Township |
| Athens | 13 | 2,462 | 2,441 | 0.16% | 69 | 36 | Township |
| Marengo | 14 | 2,229 | 2,201 | -0.09% | 64 | 35 | Township |
| Burlington | 15 | 1,985 | 1,958 | 0.05% | 56 | 36 | Township |
| Clarence | 16 | 1,897 | 1,898 | 0% | 58 | 33 | Township |
| Homer | 17 | 1,606 | 1,592 | 0.19% | 1,151 | 1 | Village |
| Fredonia | 18 | 1,588 | 1,590 | -0.06% | 47 | 34 | Township |
| Tekonsha | 19 | 1,580 | 1,518 | 0.06% | 45 | 35 | Township |
| Convis | 20 | 1,544 | 1,504 | 0.65% | 44 | 35 | Township |
| Burlington | 21 | 1,421 | 1,411 | 0.14% | 41 | 35 | Township |
| Eckford | 22 | 1,280 | 1,299 | -0.16% | 36 | 35 | Township |
| Clarendon | 23 | 1,183 | 1,181 | 0.08% | 33 | 36 | Township |
| Albion | 24 | 1,086 | 1,092 | 0% | 33 | 33 | Township |
| Lee | 25 | 1,057 | 1,056 | 0% | 29 | 36 | Township |
| Athens | 26 | 949 | 968 | -0.32% | 947 | 1 | Village |
| Tekonsha | 27 | 735 | 670 | 1.8% | 740 | 1 | Village |
| Burlington | 28 | 306 | 304 | 0% | 403 | 1 | Village |
Battle Creek is the largest city in Calhoun County, with a population of 51,887.
Burlington is the smallest city in Calhoun County, with a population of 306.
There are 28 cities in Calhoun County, Michigan.