53 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bloomington | 1 | 78,521 | 78,685 | -0.04% | 2,896 | 27.11 | City |
| Bloomington City township | 2 | 78,233 | 78,685 | -0.23% | 2,886 | 27.11 | Township |
| Normal | 3 | 52,528 | 52,752 | -0.09% | 2,847 | 18.45 | Town |
| Normal township | 4 | 51,588 | 52,025 | -0.3% | 1,617 | 31.91 | Township |
| Randolph township | 5 | 4,454 | 4,265 | 1.43% | 90 | 49.59 | Township |
| Empire township | 6 | 3,910 | 4,009 | -0.66% | 79 | 49.48 | Township |
| Le Roy | 7 | 3,439 | 3,509 | -0.41% | 1,431 | 2.40 | City |
| Old Town township | 8 | 3,368 | 3,427 | -0.53% | 95 | 35.59 | Township |
| Heyworth | 9 | 2,910 | 2,794 | 0.8% | 875 | 3.33 | Village |
| Bloomington township | 10 | 2,577 | 2,622 | -0.54% | 122 | 21.08 | Township |
| Hudson township | 11 | 2,462 | 2,503 | -0.49% | 68 | 36.31 | Township |
| Lexington township | 12 | 2,331 | 2,381 | -0.6% | 57 | 40.93 | Township |
| Lexington | 13 | 2,060 | 2,094 | -0.34% | 1,006 | 2.05 | City |
| Towanda township | 14 | 1,959 | 2,000 | -0.61% | 56 | 35.12 | Township |
| Chenoa township | 15 | 1,900 | 1,961 | -0.84% | 52 | 36.42 | Township |
| Gridley township | 16 | 1,820 | 1,872 | -0.76% | 33 | 54.47 | Township |
| Danvers township | 17 | 1,814 | 1,871 | -0.82% | 40 | 45.11 | Township |
| Hudson | 18 | 1,738 | 1,760 | -0.23% | 2,122 | 0.82 | Village |
| Chenoa | 19 | 1,674 | 1,719 | -0.53% | 689 | 2.43 | City |
| Dry Grove township | 20 | 1,510 | 1,532 | -0.46% | 43 | 35.49 | Township |
| Gridley | 21 | 1,420 | 1,455 | -0.49% | 1,152 | 1.23 | Village |
| Twin Grove | 22 | 1,374 | 1,243 | -0.94% | 347 | 3.96 | CDP |
| Downs township | 23 | 1,260 | 1,295 | -0.71% | 25 | 49.43 | Township |
| Martin township | 24 | 1,180 | 1,214 | -0.67% | 33 | 36.23 | Township |
| Downs | 25 | 1,164 | 1,196 | -0.51% | 388 | 3 | Village |
| Danvers | 26 | 1,056 | 1,091 | -0.66% | 1,315 | 0.80 | Village |
| Money Creek township | 27 | 1,043 | 1,062 | -0.57% | 27 | 38.83 | Township |
| Mount Hope township | 28 | 971 | 992 | -0.41% | 20 | 48.75 | Township |
| Colfax | 29 | 969 | 998 | -0.62% | 1,752 | 0.55 | Village |
| White Oak township | 30 | 930 | 903 | 1.09% | 56 | 16.64 | Township |
| Cheney's Grove township | 31 | 897 | 923 | -0.77% | 25 | 36.43 | Township |
| Allin township | 32 | 822 | 854 | -1.08% | 23 | 36.24 | Township |
| Saybrook | 33 | 635 | 654 | -0.63% | 792 | 0.80 | Village |
| Stanford township | 34 | 584 | 604 | -0.68% | 11 | 52.96 | Township |
| Stanford | 35 | 577 | 599 | -0.69% | 872 | 0.66 | Village |
| Carlock | 36 | 562 | 547 | 0.54% | 1,423 | 0.40 | Village |
| Bellflower township | 37 | 533 | 542 | -0.37% | 11 | 48.66 | Township |
| Arrowsmith township | 38 | 441 | 453 | -0.68% | 12 | 36.13 | Township |
| Towanda | 39 | 416 | 430 | -0.72% | 559 | 0.74 | Village |
| Bellflower | 40 | 336 | 345 | -0.59% | 903 | 0.37 | Village |
| Anchor township | 41 | 278 | 286 | -0.71% | 8 | 36.52 | Township |
| Yates township | 42 | 277 | 282 | -0.72% | 8 | 36.51 | Township |
| Arrowsmith | 43 | 266 | 276 | -0.75% | 1,350 | 0.20 | Village |
| Funks Grove township | 44 | 233 | 238 | -0.85% | 5 | 48.24 | Township |
| Kappa | 45 | 227 | 231 | -0.44% | 636 | 0.36 | Village |
| Colfax township | 46 | 223 | 236 | -1.33% | 6 | 36.25 | Township |
| West township | 47 | 223 | 224 | 0% | 5 | 48.36 | Township |
| Cropsey township | 48 | 187 | 194 | -1.06% | 10 | 18.30 | Township |
| Ellsworth | 49 | 178 | 182 | -0.56% | 820 | 0.22 | Village |
| Anchor | 50 | 157 | 161 | -0.63% | 918 | 0.17 | Village |
| Cooksville | 51 | 149 | 156 | -0.67% | 687 | 0.22 | Village |
| Shirley | 52 | 78 | 94 | 8.33% | 886 | 0.09 | CDP |
| Panola | 53 | 44 | 44 | 0% | 103 | 0.43 | Village |
Bloomington is the largest city in McLean County, with a population of 78,521.
Panola is the smallest city in McLean County.
There are 53 cities in McLean County, Illinois.