| City : | Sedan |
| County : | Gallatin County |
| State : | Montana (MT) |
| Land Area : | 61.00 sq mi |
| Water Area : | 0.12 sq mi |
| Latitude : | 45.9633371 |
| Longitude : | -110.8793026 |
| Population (2010): | 99 |
| Population Estimate (2012) : | 146 |
| Population Density : | 1.62/sq mi |
| Housing Units (2012) : | 60 |
| Median Household Income (2012) : | $80,417 (Montana : $45,456, USA : $53,046) |
| Median Family Income (2012) : | $81,111 (Montana : $58,951, USA : $64,585) |
| Median House Price (2012) : | $416,700 (Montana : $183,000, USA : $181,400) |