| Forest to Oakley (California) | 5,484.66 mi (8,826.70 km) |
| Forest to Oakton (Virginia) | 3,873.82 mi (6,234.31 km) |
| Forest to Oakville (Missouri) | 4,406.49 mi (7,091.56 km) |
| Forest to Oatfield (Oregon) | 5,071.96 mi (8,162.53 km) |
| Forest to Ocala (Florida) | 4,538.25 mi (7,303.60 km) |
| Forest to Ocean Acres (New Jersey) | 3,712.65 mi (5,974.93 km) |
| Forest to Ocean City (New Jersey) | 3,746.87 mi (6,030.00 km) |
| Forest to Ocean Pines (Maryland) | 3,808.85 mi (6,129.76 km) |
| Forest to Ocean Pointe (Hawaii) | 7,338.57 mi (11,810.29 km) |
| Forest to Ocean Springs (Mississippi) | 4,748.86 mi (7,642.55 km) |
| Forest to Oceanside (California) | 5,632.46 mi (9,064.56 km) |
| Forest to Oceanside (New York) | 3,647.33 mi (5,869.81 km) |
| Forest to Ocoee (Florida) | 4,542.25 mi (7,310.05 km) |
| Forest to Oconomowoc (Wisconsin) | 4,113.98 mi (6,620.82 km) |
| Forest to Odenton (Maryland) | 3,841.13 mi (6,181.71 km) |
