| Walnut Creek to Rowlett (Texas) | 1,471.24 mi (2,367.73 km) |
| Walnut Creek to Roy (Utah) | 577.87 mi (930.00 km) |
| Walnut Creek to Royal Kunia (Hawaii) | 2,422.12 mi (3,898.03 km) |
| Walnut Creek to Royal Oak (Michigan) | 2,058.16 mi (3,312.28 km) |
| Walnut Creek to Royal Palm Beach (Florida) | 2,538.10 mi (4,084.68 km) |
| Walnut Creek to Royse City (Texas) | 1,482.31 mi (2,385.55 km) |
| Walnut Creek to Ruskin (Florida) | 2,386.39 mi (3,840.52 km) |
| Walnut Creek to Russellville (Alabama) | 1,916.46 mi (3,084.25 km) |
| Walnut Creek to Russellville (Arkansas) | 1,607.14 mi (2,586.45 km) |
| Walnut Creek to Ruston (Louisiana) | 1,693.21 mi (2,724.95 km) |
| Walnut Creek to Rutherford (New Jersey) | 2,536.62 mi (4,082.29 km) |
| Walnut Creek to Rutland (Vermont) | 2,560.12 mi (4,120.12 km) |
| Walnut Creek to Sabana Grande (Puerto Rico) | 3,570.48 mi (5,746.13 km) |
| Walnut Creek to Sachse (Texas) | 1,468.19 mi (2,362.83 km) |
| Walnut Creek to Saco (Maine) | 2,685.23 mi (4,321.45 km) |
