| Darby to Jacksonville (Texas) | 1,242.72 mi (1,999.97 km) |
| Darby to Jacksonville Beach (Florida) | 750.84 mi (1,208.35 km) |
| Darby to James Island (South Carolina) | 560.42 mi (901.90 km) |
| Darby to Jamestown (New York) | 256.05 mi (412.07 km) |
| Darby to Jamestown (North Dakota) | 1,265.17 mi (2,036.09 km) |
| Darby to Janesville (Wisconsin) | 737.99 mi (1,187.68 km) |
| Darby to Jasmine Estates (Florida) | 908.07 mi (1,461.39 km) |
| Darby to Jasper (Alabama) | 784.04 mi (1,261.80 km) |
| Darby to Jasper (Indiana) | 634.09 mi (1,020.46 km) |
| Darby to Jefferson (Georgia) | 608.89 mi (979.92 km) |
| Darby to Jefferson (Louisiana) | 1,086.05 mi (1,747.83 km) |
| Darby to Jefferson City (Missouri) | 908.55 mi (1,462.17 km) |
| Darby to Jefferson Hills (Pennsylvania) | 248.19 mi (399.43 km) |
| Darby to Jefferson Valley-Yorktown (New York) | 123.21 mi (198.28 km) |
| Darby to Jeffersontown (Kentucky) | 565.28 mi (909.73 km) |
