| Effingham to Decatur (Alabama) | 325.81 mi (524.34 km) |
| Effingham to Decatur (Georgia) | 438.65 mi (705.94 km) |
| Effingham to Decatur (Illinois) | 54.75 mi (88.12 km) |
| Effingham to Deer Park (New York) | 813.62 mi (1,309.40 km) |
| Effingham to Deer Park (Texas) | 750.86 mi (1,208.40 km) |
| Effingham to Deerfield (Illinois) | 213.55 mi (343.68 km) |
| Effingham to Deerfield Beach (Florida) | 1,010.67 mi (1,626.52 km) |
| Effingham to Defiance (Ohio) | 266.54 mi (428.95 km) |
| Effingham to DeForest (Wisconsin) | 286.92 mi (461.75 km) |
| Effingham to DeKalb (Illinois) | 194.49 mi (313.00 km) |
| Effingham to Del Aire (California) | 1,686.28 mi (2,713.81 km) |
| Effingham to Del City (Oklahoma) | 550.28 mi (885.59 km) |
| Effingham to Del Rio (Texas) | 972.72 mi (1,565.44 km) |
| Effingham to DeLand (Florida) | 811.46 mi (1,305.92 km) |
| Effingham to Delano (California) | 1,692.49 mi (2,723.80 km) |
