21 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Independence | 1 | 119,604 | 122,899 | -0.55% | 1,534 | 77.99 | City |
| Lee's Summit | 2 | 105,892 | 101,621 | 0.81% | 1,657 | 63.89 | City |
| Blue Springs | 3 | 61,629 | 58,903 | 0.89% | 2,717 | 22.68 | City |
| Raytown | 4 | 28,525 | 29,955 | -0.99% | 2,872 | 9.93 | City |
| Grandview | 5 | 24,956 | 26,156 | -0.95% | 1,694 | 14.73 | City |
| Grain Valley | 6 | 17,225 | 15,684 | 1.82% | 2,795 | 6.16 | City |
| Independence township | 7 | 11,502 | 12,236 | -1.22% | 105 | 109.77 | Township |
| Oak Grove | 8 | 9,378 | 8,200 | 2.58% | 1,463 | 6.41 | City |
| Greenwood | 9 | 6,187 | 6,026 | 0.52% | 1,186 | 5.22 | City |
| Sugar Creek | 10 | 3,136 | 3,306 | -1.07% | 284 | 11.04 | City |
| Buckner | 11 | 2,833 | 2,943 | -0.77% | 1,586 | 1.79 | City |
| Lake Lotawana | 12 | 2,649 | 2,314 | 2.59% | 257 | 10.29 | City |
| Lone Jack | 13 | 1,884 | 1,533 | 3.86% | 318 | 5.92 | City |
| Blue Summit | 14 | 977 | 412 | 7.13% | 2,006 | 0.49 | CDP |
| Lake Tapawingo | 15 | 765 | 794 | -0.78% | 2,391 | 0.32 | City |
| Sibley | 16 | 316 | 315 | 0% | 303 | 1.04 | Village |
| Independence township | 17 | 278 | 305 | -2.46% | 5 | 61.16 | Township |
| Tarsney Lakes | 18 | 258 | 261 | 7.5% | 843 | 0.31 | CDP |
| Levasy | 19 | 73 | 77 | -1.35% | 121 | 0.60 | City |
| Unity Village | 20 | 61 | 65 | -1.61% | 42 | 1.46 | Village |
| River Bend | 21 | 5 | 5 | 0% | 3 | 1.52 | Village |
Independence is the largest city in Jackson County, with a population of 119,604.
River Bend is the smallest city in Jackson County.
There are 21 cities in Jackson County, Missouri.