| Mercer Island to Delaware (Ohio) | 1,989.65 mi (3,202.03 km) |
| Mercer Island to Delhi (California) | 704.18 mi (1,133.26 km) |
| Mercer Island to Delray Beach (Florida) | 2,697.30 mi (4,340.89 km) |
| Mercer Island to Deltona (Florida) | 2,531.48 mi (4,074.03 km) |
| Mercer Island to Deming (New Mexico) | 1,301.76 mi (2,094.97 km) |
| Mercer Island to Denison (Texas) | 1,635.58 mi (2,632.21 km) |
| Mercer Island to Dent (Ohio) | 1,952.05 mi (3,141.51 km) |
| Mercer Island to Denton (Texas) | 1,638.70 mi (2,637.23 km) |
| Mercer Island to Dentsville (South Carolina) | 2,317.11 mi (3,729.04 km) |
| Mercer Island to Denver (Colorado) | 1,017.94 mi (1,638.22 km) |
| Mercer Island to Depew (New York) | 2,113.62 mi (3,401.55 km) |
| Mercer Island to Derby (Connecticut) | 2,420.65 mi (3,895.65 km) |
| Mercer Island to Derby (Kansas) | 1,437.92 mi (2,314.11 km) |
| Mercer Island to Des Moines (Iowa) | 1,459.00 mi (2,348.03 km) |
| Mercer Island to Des Moines (Washington) | 12.69 mi (20.42 km) |
