| North Branch to Oakley (California) | 1,559.66 mi (2,510.03 km) |
| North Branch to Oakton (Virginia) | 920.64 mi (1,481.62 km) |
| North Branch to Oakville (Missouri) | 506.60 mi (815.30 km) |
| North Branch to Oatfield (Oregon) | 1,427.84 mi (2,297.89 km) |
| North Branch to Ocala (Florida) | 1,272.58 mi (2,048.02 km) |
| North Branch to Ocean Acres (New Jersey) | 1,026.81 mi (1,652.49 km) |
| North Branch to Ocean City (New Jersey) | 1,028.28 mi (1,654.86 km) |
| North Branch to Ocean Pines (Maryland) | 1,036.15 mi (1,667.51 km) |
| North Branch to Ocean Pointe (Hawaii) | 3,986.01 mi (6,414.86 km) |
| North Branch to Ocean Springs (Mississippi) | 1,067.77 mi (1,718.41 km) |
| North Branch to Oceanside (California) | 1,543.50 mi (2,484.02 km) |
| North Branch to Oceanside (New York) | 1,028.89 mi (1,655.84 km) |
| North Branch to Ocoee (Florida) | 1,325.79 mi (2,133.65 km) |
| North Branch to Oconomowoc (Wisconsin) | 276.63 mi (445.20 km) |
| North Branch to Odenton (Maryland) | 940.76 mi (1,514.01 km) |
