| North Branch to Orangevale (California) | 1,514.43 mi (2,437.25 km) |
| North Branch to Orchards (Washington) | 1,421.32 mi (2,287.40 km) |
| North Branch to Orcutt (California) | 1,614.27 mi (2,597.91 km) |
| North Branch to Oregon (Ohio) | 545.91 mi (878.55 km) |
| North Branch to Oregon (Wisconsin) | 251.45 mi (404.66 km) |
| North Branch to Oregon City (Oregon) | 1,428.70 mi (2,299.28 km) |
| North Branch to Orem (Utah) | 1,011.59 mi (1,628.00 km) |
| North Branch to Orinda (California) | 1,586.50 mi (2,553.23 km) |
| North Branch to Orland Park (Illinois) | 371.33 mi (597.59 km) |
| North Branch to Orlando (Florida) | 1,337.24 mi (2,152.08 km) |
| North Branch to Ormond Beach (Florida) | 1,292.45 mi (2,080.00 km) |
| North Branch to Oro Valley (Arizona) | 1,319.06 mi (2,122.82 km) |
| North Branch to Oroville (California) | 1,506.02 mi (2,423.70 km) |
| North Branch to Oshkosh (Wisconsin) | 239.04 mi (384.69 km) |
| North Branch to Oskaloosa (Iowa) | 292.12 mi (470.12 km) |
