16 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Rio Rico | Santa Cruz County | 22,234 |
| Rincon Valley | Pima County | 5,961 |
| Red Rock | Pinal County | 3,716 |
| Rio Verde | Maricopa County | 2,342 |
| Red Lake | Coconino County | 2,035 |
| Rainbow City | Gila County | 891 |
| Roosevelt Estates | Gila County | 755 |
| Round Rock | Apache County | 505 |
| Round Valley | Gila County | 505 |
| Red Mesa | Apache County | 468 |
| Rough Rock | Apache County | 458 |
| Rancho Mesa Verde | Yuma County | 446 |
| Rock Point | Apache County | 369 |
| Red Rock | Pinal County | 88 |
| Rye | Gila County | 25 |
| Rock House | Gila County | 9 |