| population | |
| Fillmore Central High School | |
| Greenfield Lutheran Church | |
| Gunderson Lutheran - Harmony Clinic | |
| Harmony | 994 |
| Harmony (historical) | |
| Harmony Fire Department |
 | Decorah Municipal Airport | ~ 37.99 km |
| Waukon Municipal Airport | ~ 53.25 km |
| Rochester International Airport | ~ 55.63 km |
| La Crosse Regional Airport | ~ 70.39 km |
| Northeast Iowa Regional Airport | ~ 72.44 km |
| Austin Municipal Airport | ~ 75.38 km |
| Prairie Du Chien Municipal Airport | ~ 93.23 km |
| Albert Lea Municipal Airport | ~ 110.20 km |
| Sparta Fort Mc Coy Airport | ~ 111.52 km |
