9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Logansport | 1 | 18,159 | 18,343 | -0.2% | 1,730 | 10.49 | City |
| Galveston | 2 | 1,270 | 1,284 | -0.24% | 2,209 | 0.57 | Town |
| Walton | 3 | 999 | 963 | 0.71% | 2,334 | 0.43 | Town |
| Royal Center | 4 | 796 | 798 | 0% | 1,394 | 0.57 | Town |
| Twelve Mile | 5 | 376 | 0 | 7.12% | 591 | 0.64 | CDP |
| Young America | 6 | 375 | 0 | 7.14% | 2,660 | 0.14 | CDP |
| Lucerne | 7 | 150 | 0 | 7.14% | 1,667 | 0.09 | CDP |
| Lake Cicott | 8 | 87 | 0 | 6.1% | 209 | 0.42 | CDP |
| Onward | 9 | 77 | 77 | 0% | 748 | 0.10 | Town |
Logansport is the largest city in Cass County, with a population of 18,159.
Onward is the smallest city in Cass County.
There are 9 cities in Cass County, Indiana.