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> New Hampshire > Londonderry
| City : | Londonderry |
| County : | Carroll County, Overton County, Placer County, Rockingham County |
| State : | New Hampshire (NH) |
| Land Area : | 12.31 sq mi |
| Water Area : | 0.02 sq mi |
| Latitude : | 42.8533976 |
| Longitude : | -71.3624246 |
| Population (2010): | 11,037 |
| Population Estimate (2012) : | 10,683 |
| Population Density : | 896.85/sq mi |
| Housing Units (2012) : | 4,105 |
| Median Household Income (2012) : | $89,090 (New Hampshire : $64,925, USA : $53,046) |
| Median Family Income (2012) : | $102,994 (New Hampshire : $79,488, USA : $64,585) |
| Median House Price (2012) : | $267,800 (New Hampshire : $245,600, USA : $181,400) |