| Healdsburg to Rockville (Maryland) | 2,433.10 mi (3,915.69 km) |
| Healdsburg to Rockville Centre (New York) | 2,588.34 mi (4,165.53 km) |
| Healdsburg to Rockwall (Texas) | 1,527.18 mi (2,457.77 km) |
| Healdsburg to Rocky Mount (North Carolina) | 2,458.72 mi (3,956.92 km) |
| Healdsburg to Rocky Point (New York) | 2,619.72 mi (4,216.03 km) |
| Healdsburg to Rocky River (Ohio) | 2,157.84 mi (3,472.72 km) |
| Healdsburg to Roessleville (New York) | 2,551.01 mi (4,105.46 km) |
| Healdsburg to Rogers (Arkansas) | 1,576.09 mi (2,536.47 km) |
| Healdsburg to Rogers (Minnesota) | 1,563.03 mi (2,515.46 km) |
| Healdsburg to Rohnert Park (California) | 21.04 mi (33.87 km) |
| Healdsburg to Rolla (Missouri) | 1,679.47 mi (2,702.85 km) |
| Healdsburg to Rolling Meadows (Illinois) | 1,837.16 mi (2,956.63 km) |
| Healdsburg to Roma (Texas) | 1,618.32 mi (2,604.43 km) |
| Healdsburg to Rome (Georgia) | 2,100.89 mi (3,381.05 km) |
| Healdsburg to Rome (New York) | 2,460.32 mi (3,959.50 km) |
