| Healdsburg to Ukiah (California) | 40.69 mi (65.49 km) |
| Healdsburg to Union (Missouri) | 1,713.96 mi (2,758.36 km) |
| Healdsburg to Union City (California) | 84.14 mi (135.40 km) |
| Healdsburg to Union City (Georgia) | 2,150.30 mi (3,460.57 km) |
| Healdsburg to Union City (New Jersey) | 2,566.62 mi (4,130.58 km) |
| Healdsburg to Union City (Tennessee) | 1,848.85 mi (2,975.44 km) |
| Healdsburg to Union Hill-Novelty Hill (Washington) | 627.15 mi (1,009.29 km) |
| Healdsburg to Union Park (Florida) | 2,471.63 mi (3,977.70 km) |
| Healdsburg to Uniondale (New York) | 2,589.71 mi (4,167.74 km) |
| Healdsburg to Universal City (Texas) | 1,532.33 mi (2,466.04 km) |
| Healdsburg to University (Florida) | 2,422.87 mi (3,899.23 km) |
| Healdsburg to University City (Missouri) | 1,746.30 mi (2,810.40 km) |
| Healdsburg to University Heights (Ohio) | 2,173.84 mi (3,498.45 km) |
| Healdsburg to University of California-Santa Barbara (California) | 335.22 mi (539.48 km) |
| Healdsburg to University Park (Texas) | 1,509.86 mi (2,429.88 km) |
