| City : | Green Mountain |
| County : | Marshall County |
| State : | Iowa (IA) |
| Land Area : | 0.69 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 42.1019172 |
| Longitude : | -92.8196260 |
| Population (2010): | 126 |
| Population Estimate (2012) : | 148 |
| Population Density : | 183.74/sq mi |
| Housing Units (2012) : | 66 |
| Median Household Income (2012) : | $51,250 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $50,208 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $71,300 (Iowa : $123,000, USA : $181,400) |