19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Raymore | 1 | 26,830 | 23,020 | 2.92% | 1,550 | 17.31 | City |
| Belton | 2 | 26,532 | 24,036 | 1.92% | 1,863 | 14.24 | City |
| Harrisonville | 3 | 9,667 | 10,129 | -0.94% | 978 | 9.88 | City |
| Pleasant Hill | 4 | 8,602 | 8,794 | -0.44% | 1,071 | 8.03 | City |
| Peculiar | 5 | 6,391 | 5,666 | 2.32% | 705 | 9.06 | City |
| Lake Winnebago | 6 | 1,884 | 1,461 | 4.72% | 812 | 2.32 | City |
| Garden City | 7 | 1,544 | 1,631 | -1.09% | 625 | 2.47 | City |
| Archie | 8 | 1,255 | 1,272 | -0.24% | 836 | 1.50 | City |
| Loch Lloyd | 9 | 1,045 | 870 | 3.47% | 600 | 1.74 | Village |
| Cleveland | 10 | 629 | 654 | -0.79% | 423 | 1.49 | City |
| Freeman | 11 | 501 | 478 | 1.01% | 583 | 0.86 | City |
| La Tour | 12 | 301 | 157 | 7.12% | 2,736 | 0.11 | CDP |
| East Lynne | 13 | 287 | 299 | -0.69% | 880 | 0.33 | City |
| Strasburg | 14 | 119 | 109 | 1.71% | 613 | 0.19 | City |
| Lake Annette | 15 | 110 | 107 | 0.92% | 705 | 0.16 | City |
| West Line | 16 | 109 | 119 | -1.8% | 240 | 0.45 | Village |
| Baldwin Park | 17 | 78 | 82 | -1.27% | 1,026 | 0.08 | Village |
| Gunn City | 18 | 76 | 78 | 0% | 938 | 0.08 | Village |
| Riverview Estates | 19 | 73 | 75 | 0% | 304 | 0.24 | Village |
Raymore is the largest city in Cass County, with a population of 26,830.
Riverview Estates is the smallest city in Cass County.
There are 19 cities in Cass County, Missouri.