| Mercerville to Oakley (California) | 2,494.93 mi (4,015.20 km) |
| Mercerville to Oakton (Virginia) | 167.30 mi (269.24 km) |
| Mercerville to Oakville (Missouri) | 843.05 mi (1,356.76 km) |
| Mercerville to Oatfield (Oregon) | 2,417.33 mi (3,890.32 km) |
| Mercerville to Ocala (Florida) | 872.82 mi (1,404.67 km) |
| Mercerville to Ocean Acres (New Jersey) | 40.42 mi (65.06 km) |
| Mercerville to Ocean City (New Jersey) | 67.04 mi (107.90 km) |
| Mercerville to Ocean Pines (Maryland) | 130.20 mi (209.53 km) |
| Mercerville to Ocean Pointe (Hawaii) | 4,940.17 mi (7,950.44 km) |
| Mercerville to Ocean Springs (Mississippi) | 1,042.81 mi (1,678.25 km) |
| Mercerville to Oceanside (California) | 2,385.52 mi (3,839.12 km) |
| Mercerville to Oceanside (New York) | 61.90 mi (99.62 km) |
| Mercerville to Ocoee (Florida) | 894.10 mi (1,438.91 km) |
| Mercerville to Oconomowoc (Wisconsin) | 738.41 mi (1,188.36 km) |
| Mercerville to Odenton (Maryland) | 133.70 mi (215.17 km) |
