| Boulder to Pell City (Alabama) | 1,138.49 mi (1,832.23 km) |
| Boulder to Pella (Iowa) | 652.34 mi (1,049.83 km) |
| Boulder to Pembroke Pines (Florida) | 1,728.33 mi (2,781.47 km) |
| Boulder to Pendleton (Oregon) | 788.91 mi (1,269.63 km) |
| Boulder to Pensacola (Florida) | 1,211.82 mi (1,950.23 km) |
| Boulder to Peoria (Arizona) | 580.52 mi (934.26 km) |
| Boulder to Peoria (Illinois) | 823.36 mi (1,325.07 km) |
| Boulder to Perris (California) | 788.19 mi (1,268.47 km) |
| Boulder to Perry (Georgia) | 1,303.59 mi (2,097.92 km) |
| Boulder to Perry Hall (Maryland) | 1,523.23 mi (2,451.40 km) |
| Boulder to Perrysburg (Ohio) | 1,132.50 mi (1,822.58 km) |
| Boulder to Perth Amboy (New Jersey) | 1,625.06 mi (2,615.29 km) |
| Boulder to Peru (Indiana) | 1,008.41 mi (1,622.89 km) |
| Boulder to Petal (Mississippi) | 1,077.77 mi (1,734.51 km) |
| Boulder to Petaluma (California) | 937.74 mi (1,509.14 km) |
