20 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Kansas City | 1 | 520,000 | 508,096 | 0.38% | 1,653 | 315 | City |
| Independence | 2 | 121,021 | 122,845 | -0.25% | 1,552 | 78 | City |
| Lee's Summit | 3 | 108,842 | 101,572 | 1.13% | 1,703 | 64 | City |
| Blue Springs | 4 | 62,429 | 58,880 | 0.96% | 2,807 | 22 | City |
| Raytown | 5 | 28,892 | 29,947 | -0.61% | 2,909 | 10 | City |
| Grandview | 6 | 26,682 | 26,525 | 0.1% | 1,812 | 15 | City |
| Grain Valley | 7 | 17,447 | 15,683 | 1.71% | 2,831 | 6 | City |
| Independence | 8 | 11,785 | 12,245 | -0.07% | 107 | 110 | Township |
| Oak Grove | 9 | 9,595 | 8,197 | 2.49% | 1,497 | 6 | City |
| Greenwood | 10 | 6,339 | 6,026 | 0.83% | 1,215 | 5 | City |
| Sugar Creek | 11 | 3,181 | 3,307 | -0.66% | 288 | 11 | City |
| Buckner | 12 | 2,868 | 2,942 | -0.42% | 1,606 | 2 | City |
| Lake Lotawana | 13 | 2,816 | 2,311 | 3.07% | 274 | 10 | City |
| Lone Jack | 14 | 1,964 | 1,532 | 3.81% | 332 | 6 | City |
| Lake Tapawingo | 15 | 776 | 790 | -0.26% | 2,425 | 0 | City |
| Sibley | 16 | 322 | 315 | 0.31% | 309 | 1 | Village |
| Independence | 17 | 278 | 305 | -1.77% | 5 | 61 | Township |
| Levasy | 18 | 72 | 75 | 0% | 120 | 1 | City |
| Unity Village | 19 | 58 | 63 | -1.69% | 40 | 1 | Village |
| River Bend | 20 | 5 | 5 | 0% | 3 | 2 | Village |
Kansas City is the largest city in Jackson County, with a population of 520,000.
River Bend is the smallest city in Jackson County, with a population of 5.
There are 20 cities in Jackson County, Missouri.