| Rancho Santa Margarita to Pelham (Alabama) | 1,771.02 mi (2,850.19 km) |
| Rancho Santa Margarita to Pell City (Alabama) | 1,796.19 mi (2,890.69 km) |
| Rancho Santa Margarita to Pella (Iowa) | 1,448.92 mi (2,331.80 km) |
| Rancho Santa Margarita to Pembroke Pines (Florida) | 2,281.73 mi (3,672.10 km) |
| Rancho Santa Margarita to Pendleton (Oregon) | 834.66 mi (1,343.25 km) |
| Rancho Santa Margarita to Pensacola (Florida) | 1,788.15 mi (2,877.75 km) |
| Rancho Santa Margarita to Peoria (Arizona) | 304.77 mi (490.48 km) |
| Rancho Santa Margarita to Peoria (Illinois) | 1,608.89 mi (2,589.26 km) |
| Rancho Santa Margarita to Perris (California) | 24.19 mi (38.92 km) |
| Rancho Santa Margarita to Perry (Georgia) | 1,954.39 mi (3,145.29 km) |
| Rancho Santa Margarita to Perry Hall (Maryland) | 2,297.74 mi (3,697.86 km) |
| Rancho Santa Margarita to Perrysburg (Ohio) | 1,923.98 mi (3,096.35 km) |
| Rancho Santa Margarita to Perth Amboy (New Jersey) | 2,410.47 mi (3,879.28 km) |
| Rancho Santa Margarita to Peru (Indiana) | 1,792.73 mi (2,885.11 km) |
| Rancho Santa Margarita to Petal (Mississippi) | 1,655.32 mi (2,663.97 km) |
