| Mercerville to Orangevale (California) | 2,455.55 mi (3,951.82 km) |
| Mercerville to Orchards (Washington) | 2,411.40 mi (3,880.78 km) |
| Mercerville to Orcutt (California) | 2,504.36 mi (4,030.38 km) |
| Mercerville to Oregon (Ohio) | 466.31 mi (750.46 km) |
| Mercerville to Oregon (Wisconsin) | 780.89 mi (1,256.72 km) |
| Mercerville to Oregon City (Oregon) | 2,418.01 mi (3,891.42 km) |
| Mercerville to Orem (Utah) | 1,936.60 mi (3,116.66 km) |
| Mercerville to Orinda (California) | 2,522.38 mi (4,059.38 km) |
| Mercerville to Orland Park (Illinois) | 693.38 mi (1,115.89 km) |
| Mercerville to Orlando (Florida) | 895.81 mi (1,441.67 km) |
| Mercerville to Ormond Beach (Florida) | 838.10 mi (1,348.80 km) |
| Mercerville to Oro Valley (Arizona) | 2,074.97 mi (3,339.34 km) |
| Mercerville to Oroville (California) | 2,456.58 mi (3,953.49 km) |
| Mercerville to Oshkosh (Wisconsin) | 756.21 mi (1,217.00 km) |
| Mercerville to Oskaloosa (Iowa) | 940.43 mi (1,513.48 km) |
