| Highlands Ranch to Ukiah (California) | 973.32 mi (1,566.41 km) |
| Highlands Ranch to Union (Missouri) | 753.74 mi (1,213.03 km) |
| Highlands Ranch to Union City (California) | 929.12 mi (1,495.28 km) |
| Highlands Ranch to Union City (Georgia) | 1,201.45 mi (1,933.55 km) |
| Highlands Ranch to Union City (New Jersey) | 1,627.54 mi (2,619.27 km) |
| Highlands Ranch to Union City (Tennessee) | 892.14 mi (1,435.77 km) |
| Highlands Ranch to Union Hill-Novelty Hill (Washington) | 1,018.40 mi (1,638.95 km) |
| Highlands Ranch to Union Park (Florida) | 1,549.02 mi (2,492.91 km) |
| Highlands Ranch to Uniondale (New York) | 1,650.70 mi (2,656.54 km) |
| Highlands Ranch to Universal City (Texas) | 786.94 mi (1,266.46 km) |
| Highlands Ranch to University (Florida) | 1,510.51 mi (2,430.92 km) |
| Highlands Ranch to University City (Missouri) | 786.37 mi (1,265.54 km) |
| Highlands Ranch to University Heights (Ohio) | 1,234.51 mi (1,986.75 km) |
| Highlands Ranch to University of California-Santa Barbara (California) | 893.30 mi (1,437.63 km) |
| Highlands Ranch to University Park (Texas) | 648.76 mi (1,044.07 km) |
