| River Ridge to Ukiah (California) | 1,969.01 mi (3,168.81 km) |
| River Ridge to Union (Missouri) | 587.61 mi (945.66 km) |
| River Ridge to Union City (California) | 1,890.76 mi (3,042.88 km) |
| River Ridge to Union City (Georgia) | 416.40 mi (670.13 km) |
| River Ridge to Union City (New Jersey) | 1,175.39 mi (1,891.61 km) |
| River Ridge to Union City (Tennessee) | 451.96 mi (727.36 km) |
| River Ridge to Union Hill-Novelty Hill (Washington) | 2,081.27 mi (3,349.49 km) |
| River Ridge to Union Park (Florida) | 549.90 mi (884.98 km) |
| River Ridge to Uniondale (New York) | 1,192.50 mi (1,919.14 km) |
| River Ridge to Universal City (Texas) | 485.81 mi (781.84 km) |
| River Ridge to University (Florida) | 487.99 mi (785.35 km) |
| River Ridge to University City (Missouri) | 601.59 mi (968.16 km) |
| River Ridge to University Heights (Ohio) | 932.93 mi (1,501.41 km) |
| River Ridge to University of California-Santa Barbara (California) | 1,753.67 mi (2,822.27 km) |
| River Ridge to University Park (Texas) | 435.97 mi (701.62 km) |
