| City : | Armstrong City |
| County : | Emmet County, Power County |
| State : | Iowa (IA) |
| Land Area : | 0.88 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 43.3944096 |
| Longitude : | -94.4832062 |
| Population (2010): | 926 |
| Population Estimate (2012) : | 904 |
| Population Density : | 1,057.57/sq mi |
| Housing Units (2012) : | 439 |
| Median Household Income (2012) : | $49,250 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $66,827 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $73,000 (Iowa : $123,000, USA : $181,400) |
Armstrong City Zip Codes
| 50514 (1,452) |