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> New Hampshire > Zip Code 03809
| Zip Code : | 03809 |
| City : | Alton |
| County : | Belknap County |
| State : | New Hampshire (NH) |
| Land Area : | 40.32 sq mi |
| Water Area : | 1.01 sq mi |
| Latitude : | 43.4578457 |
| Longitude : | -71.1991308 |
| Population (2010): | 3,716 |
| Population Estimate (2012) : | 3,503 |
| Population Density : | 92.17/sq mi |
| Housing Units (2012) : | 2,026 |
| Median Household Income (2012) : | $62,854 (New Hampshire : $64,925, USA : $53,046) |
| Median Family Income (2012) : | $61,523 (New Hampshire : $79,488, USA : $64,585) |
| Median House Price (2012) : | $255,800 (New Hampshire : $245,600, USA : $181,400) |