| DeKalb to Oakley (California) | 1,754.87 mi (2,824.18 km) |
| DeKalb to Oakton (Virginia) | 637.22 mi (1,025.51 km) |
| DeKalb to Oakville (Missouri) | 254.57 mi (409.69 km) |
| DeKalb to Oatfield (Oregon) | 1,695.72 mi (2,728.99 km) |
| DeKalb to Ocala (Florida) | 955.24 mi (1,537.31 km) |
| DeKalb to Ocean Acres (New Jersey) | 770.25 mi (1,239.60 km) |
| DeKalb to Ocean City (New Jersey) | 763.60 mi (1,228.90 km) |
| DeKalb to Ocean Pines (Maryland) | 757.77 mi (1,219.51 km) |
| DeKalb to Ocean Pointe (Hawaii) | 4,199.82 mi (6,758.95 km) |
| DeKalb to Ocean Springs (Mississippi) | 796.18 mi (1,281.33 km) |
| DeKalb to Oceanside (California) | 1,665.98 mi (2,681.14 km) |
| DeKalb to Oceanside (New York) | 788.69 mi (1,269.28 km) |
| DeKalb to Ocoee (Florida) | 1,007.37 mi (1,621.21 km) |
| DeKalb to Oconomowoc (Wisconsin) | 81.74 mi (131.55 km) |
| DeKalb to Odenton (Maryland) | 662.88 mi (1,066.80 km) |
