| Walnut Creek to Reading (Pennsylvania) | 2,449.53 mi (3,942.14 km) |
| Walnut Creek to Red Bank (New Jersey) | 2,545.29 mi (4,096.24 km) |
| Walnut Creek to Red Bank (Tennessee) | 2,036.52 mi (3,277.47 km) |
| Walnut Creek to Red Bluff (California) | 157.29 mi (253.13 km) |
| Walnut Creek to Red Hill (South Carolina) | 2,405.56 mi (3,871.37 km) |
| Walnut Creek to Red Oak (Texas) | 1,468.23 mi (2,362.89 km) |
| Walnut Creek to Red Wing (Minnesota) | 1,587.58 mi (2,554.97 km) |
| Walnut Creek to Redan (Georgia) | 2,126.69 mi (3,422.57 km) |
| Walnut Creek to Redding (California) | 185.12 mi (297.92 km) |
| Walnut Creek to Redland (Maryland) | 2,403.35 mi (3,867.82 km) |
| Walnut Creek to Redlands (California) | 380.56 mi (612.45 km) |
| Walnut Creek to Redmond (Oregon) | 441.61 mi (710.71 km) |
| Walnut Creek to Redmond (Washington) | 675.32 mi (1,086.83 km) |
| Walnut Creek to Redondo Beach (California) | 346.57 mi (557.75 km) |
| Walnut Creek to Redwood City (California) | 29.43 mi (47.36 km) |
