| Johnston to Marshall (Minnesota) | 217.20 mi (349.55 km) |
| Johnston to Marshall (Missouri) | 180.11 mi (289.86 km) |
| Johnston to Marshall (Texas) | 633.42 mi (1,019.39 km) |
| Johnston to Marshalltown (Iowa) | 48.25 mi (77.65 km) |
| Johnston to Marshfield (Wisconsin) | 272.27 mi (438.18 km) |
| Johnston to Martha Lake (Washington) | 1,452.25 mi (2,337.17 km) |
| Johnston to Martin (Tennessee) | 452.79 mi (728.69 km) |
| Johnston to Martinez (California) | 1,520.53 mi (2,447.06 km) |
| Johnston to Martinez (Georgia) | 849.19 mi (1,366.65 km) |
| Johnston to Martinsburg (West Virginia) | 839.37 mi (1,350.84 km) |
| Johnston to Martinsville (Indiana) | 413.67 mi (665.74 km) |
| Johnston to Martinsville (New Jersey) | 997.03 mi (1,604.57 km) |
| Johnston to Martinsville (Virginia) | 817.65 mi (1,315.87 km) |
| Johnston to Maryland City (Maryland) | 906.47 mi (1,458.82 km) |
| Johnston to Maryland Heights (Missouri) | 267.45 mi (430.42 km) |
