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> Massachusetts > Zip Code 01940
| Zip Code : | 01940 |
| City : | Lynn city, Lynnfield, Peabody city, Wakefield |
| County : | Essex County, Middlesex County |
| State : | Massachusetts (MA) |
| Land Area : | 10.55 sq mi |
| Water Area : | 0.66 sq mi |
| Latitude : | 42.5341175 |
| Longitude : | -71.0385743 |
| Population (2010): | 12,108 |
| Population Estimate (2012) : | 12,019 |
| Population Density : | 1,147.85/sq mi |
| Housing Units (2012) : | 4,729 |
| Median Household Income (2012) : | $103,379 (Massachusetts : $66,658, USA : $53,046) |
| Median Family Income (2012) : | $117,993 (Massachusetts : $84,380, USA : $64,585) |
| Median House Price (2012) : | $534,800 (Massachusetts : $335,500, USA : $181,400) |