| Harrison to Portage (Michigan) | 618.10 mi (994.73 km) |
| Harrison to Portage (Wisconsin) | 822.23 mi (1,323.24 km) |
| Harrison to Portales (New Mexico) | 1,680.84 mi (2,705.05 km) |
| Harrison to Porterville (California) | 2,445.00 mi (3,934.85 km) |
| Harrison to Portland (Maine) | 254.14 mi (409.01 km) |
| Harrison to Portland (Oregon) | 2,442.49 mi (3,930.81 km) |
| Harrison to Portland (Tennessee) | 753.37 mi (1,212.43 km) |
| Harrison to Portland (Texas) | 1,613.82 mi (2,597.19 km) |
| Harrison to Portsmouth (New Hampshire) | 206.05 mi (331.60 km) |
| Harrison to Portsmouth (Ohio) | 513.30 mi (826.08 km) |
| Harrison to Portsmouth (Virginia) | 321.41 mi (517.27 km) |
| Harrison to Post Falls (Idaho) | 2,154.67 mi (3,467.61 km) |
| Harrison to Potomac (Maryland) | 230.37 mi (370.75 km) |
| Harrison to Potomac Park (California) | 2,460.03 mi (3,959.04 km) |
| Harrison to Pottstown (Pennsylvania) | 114.19 mi (183.77 km) |
