8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Idabel | 1 | 6,984 | 6,980 | 0.01% | 420 | 17 | City |
| Broken Bow | 2 | 4,234 | 4,212 | 0.09% | 691 | 6 | City |
| Valliant | 3 | 797 | 821 | -0.5% | 413 | 2 | Town |
| Wright City | 4 | 597 | 612 | -0.33% | 675 | 1 | Town |
| Haworth | 5 | 284 | 284 | 0% | 177 | 2 | Town |
| Hochatown | 6 | 266 | 271 | -0.37% | 24 | 11 | Town |
| Millerton | 7 | 212 | 214 | 0% | 131 | 2 | Town |
| Garvin | 8 | 176 | 178 | 0% | 93 | 2 | Town |
Idabel is the largest city in McCurtain County, with a population of 6,984.
Garvin is the smallest city in McCurtain County, with a population of 176.
There are 8 cities in McCurtain County, Oklahoma.