USA
> Massachusetts > Zip Code 01840
| Zip Code : | 01840 |
| City : | Lawrence city |
| County : | Essex County |
| State : | Massachusetts (MA) |
| Land Area : | 0.50 sq mi |
| Water Area : | 0.08 sq mi |
| Latitude : | 42.7067633 |
| Longitude : | -71.1604026 |
| Population (2010): | 4,733 |
| Population Estimate (2012) : | 4,493 |
| Population Density : | 9,499.62/sq mi |
| Housing Units (2012) : | 2,347 |
| Median Household Income (2012) : | $20,359 (Massachusetts : $66,658, USA : $53,046) |
| Median Family Income (2012) : | $30,685 (Massachusetts : $84,380, USA : $64,585) |
| Median House Price (2012) : | $179,000 (Massachusetts : $335,500, USA : $181,400) |