| Walnut Creek to Mankato (Minnesota) | 1,516.90 mi (2,441.21 km) |
| Walnut Creek to Manor (Texas) | 1,490.56 mi (2,398.82 km) |
| Walnut Creek to Manorville (New York) | 2,603.34 mi (4,189.68 km) |
| Walnut Creek to Mansfield (Ohio) | 2,102.99 mi (3,384.44 km) |
| Walnut Creek to Mansfield (Texas) | 1,448.90 mi (2,331.78 km) |
| Walnut Creek to Manteca (California) | 45.03 mi (72.46 km) |
| Walnut Creek to Manville (New Jersey) | 2,515.66 mi (4,048.57 km) |
| Walnut Creek to Maple Grove (Minnesota) | 1,550.70 mi (2,495.60 km) |
| Walnut Creek to Maple Heights (Ohio) | 2,147.11 mi (3,455.43 km) |
| Walnut Creek to Maple Valley (Washington) | 653.86 mi (1,052.29 km) |
| Walnut Creek to Mapleton (Utah) | 581.97 mi (936.60 km) |
| Walnut Creek to Maplewood (Minnesota) | 1,570.61 mi (2,527.65 km) |
| Walnut Creek to Marana (Arizona) | 720.76 mi (1,159.95 km) |
| Walnut Creek to Marco Island (Florida) | 2,483.96 mi (3,997.55 km) |
| Walnut Creek to Margate (Florida) | 2,553.92 mi (4,110.14 km) |
