| population | |
| Hadley | 58 |
| Hadley (historical) |
| population | |
| Hadley Post Office |
 | Slayton Municipal Airport | ~ 6.15 km |
| Southwest Minnesota Regional Airport - Marshall/Ryan Field | ~ 50.45 km |
| Brookings Regional Airport | ~ 83.78 km |
| Sioux Falls Regional Airport / Joe Foss Field | ~ 84.40 km |
| Redwood Falls Municipal Airport | ~ 86.90 km |
| Spirit Lake Municipal Airport | ~ 89.11 km |
| Canton Municipal Airport | ~ 95.67 km |
| Madison Municipal Airport | ~ 98.22 km |
| Spencer Municipal Airport | ~ 106.51 km |
