| River Grove to Pelham (Alabama) | 598.01 mi (962.40 km) |
| River Grove to Pell City (Alabama) | 584.16 mi (940.11 km) |
| River Grove to Pella (Iowa) | 264.66 mi (425.93 km) |
| River Grove to Pembroke Pines (Florida) | 1,179.16 mi (1,897.67 km) |
| River Grove to Pendleton (Oregon) | 1,556.59 mi (2,505.10 km) |
| River Grove to Pensacola (Florida) | 794.21 mi (1,278.16 km) |
| River Grove to Peoria (Arizona) | 1,441.65 mi (2,320.11 km) |
| River Grove to Peoria (Illinois) | 122.73 mi (197.51 km) |
| River Grove to Perris (California) | 1,688.77 mi (2,717.82 km) |
| River Grove to Perry (Georgia) | 690.91 mi (1,111.91 km) |
| River Grove to Perry Hall (Maryland) | 619.71 mi (997.32 km) |
| River Grove to Perrysburg (Ohio) | 218.01 mi (350.85 km) |
| River Grove to Perth Amboy (New Jersey) | 710.86 mi (1,144.02 km) |
| River Grove to Peru (Indiana) | 121.80 mi (196.02 km) |
| River Grove to Petal (Mississippi) | 734.84 mi (1,182.61 km) |
