| Herrin to Oakley (California) | 1,771.78 mi (2,851.40 km) |
| Herrin to Oakton (Virginia) | 639.59 mi (1,029.32 km) |
| Herrin to Oakville (Missouri) | 83.22 mi (133.94 km) |
| Herrin to Oatfield (Oregon) | 1,797.28 mi (2,892.44 km) |
| Herrin to Ocala (Florida) | 714.95 mi (1,150.59 km) |
| Herrin to Ocean Acres (New Jersey) | 804.89 mi (1,295.34 km) |
| Herrin to Ocean City (New Jersey) | 785.56 mi (1,264.24 km) |
| Herrin to Ocean Pines (Maryland) | 755.24 mi (1,215.44 km) |
| Herrin to Ocean Pointe (Hawaii) | 4,206.59 mi (6,769.86 km) |
| Herrin to Ocean Springs (Mississippi) | 510.80 mi (822.05 km) |
| Herrin to Oceanside (California) | 1,615.01 mi (2,599.11 km) |
| Herrin to Oceanside (New York) | 845.81 mi (1,361.20 km) |
| Herrin to Ocoee (Florida) | 769.82 mi (1,238.91 km) |
| Herrin to Oconomowoc (Wisconsin) | 367.36 mi (591.21 km) |
| Herrin to Odenton (Maryland) | 672.90 mi (1,082.92 km) |
