17 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Welch | 1 | 3,308 | 3,572 | -1.58% | 548 | 6.04 | City |
| Gilbert Creek | 2 | 734 | 1,019 | -3.17% | 63 | 11.57 | CDP |
| Raysal | 3 | 689 | 405 | 2.23% | 561 | 1.23 | CDP |
| Gary | 4 | 661 | 765 | -3.08% | 786 | 0.84 | City |
| War | 5 | 521 | 616 | -3.52% | 585 | 0.89 | City |
| Crumpler | 6 | 448 | 224 | 3.7% | 299 | 1.50 | CDP |
| Kimball | 7 | 235 | 280 | -3.69% | 388 | 0.60 | Town |
| Iaeger | 8 | 214 | 253 | -3.6% | 270 | 0.79 | Town |
| Northfork | 9 | 193 | 230 | -3.5% | 200 | 0.96 | Town |
| Berwind | 10 | 180 | 221 | -3.74% | 623 | 0.29 | CDP |
| Davy | 11 | 177 | 207 | -3.28% | 139 | 1.27 | Town |
| Bradshaw | 12 | 171 | 201 | -3.39% | 221 | 0.77 | Town |
| Keystone | 13 | 145 | 174 | -3.97% | 448 | 0.32 | City |
| Maybeury | 14 | 145 | 72 | -3.97% | 87 | 1.67 | CDP |
| Anawalt | 15 | 141 | 165 | -3.42% | 245 | 0.57 | Town |
| Roderfield | 16 | 112 | 111 | -4.27% | 423 | 0.27 | CDP |
| Cucumber | 17 | 62 | 23 | 6.9% | 137 | 0.45 | CDP |
Welch is the largest city in McDowell County, with a population of 3,308.
Cucumber is the smallest city in McDowell County.
There are 17 cities in McDowell County, West Virginia.