| North Highlands to Orangevale (California) | 8.24 mi (13.26 km) |
| North Highlands to Orchards (Washington) | 488.48 mi (786.12 km) |
| North Highlands to Orcutt (California) | 267.91 mi (431.16 km) |
| North Highlands to Oregon (Ohio) | 1,997.69 mi (3,214.97 km) |
| North Highlands to Oregon (Wisconsin) | 1,687.97 mi (2,716.52 km) |
| North Highlands to Oregon City (Oregon) | 465.11 mi (748.52 km) |
| North Highlands to Orem (Utah) | 527.62 mi (849.12 km) |
| North Highlands to Orinda (California) | 69.99 mi (112.64 km) |
| North Highlands to Orland Park (Illinois) | 1,770.39 mi (2,849.17 km) |
| North Highlands to Orlando (Florida) | 2,388.89 mi (3,844.55 km) |
| North Highlands to Ormond Beach (Florida) | 2,375.63 mi (3,823.20 km) |
| North Highlands to Oro Valley (Arizona) | 725.85 mi (1,168.15 km) |
| North Highlands to Oroville (California) | 58.16 mi (93.60 km) |
| North Highlands to Oshkosh (Wisconsin) | 1,729.46 mi (2,783.30 km) |
| North Highlands to Oskaloosa (Iowa) | 1,524.84 mi (2,453.99 km) |
