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| County : | Essex County |
| State : | Massachusetts (MA) |
| Land Area : | 492.56 sq mi |
| Water Area : | 335.91 sq mi |
| Latitude : | 42.6427110 |
| Longitude : | -70.8651073 |
| Population (2010): | 743,159 |
| Population Estimate (2012) : | 744,961 |
| Population Density : | 1,508.77/sq mi |
| Housing Units (2012) : | 306,754 |
| Median Household Income (2012) : | $66,918 (Massachusetts : $66,658, USA : $53,046) |
| Median Family Income (2012) : | $84,083 (Massachusetts : $84,380, USA : $64,585) |
| Median House Price (2012) : | $354,700 (Massachusetts : $335,500, USA : $181,400) |
Essex County Cities / Towns
| Amesbury Town City (16,283) | Andover (8,762) | Beverly City (39,502) |
| Boxford (2,339) | Danvers (26,493) | Essex (1,471) |
| Gloucester City (28,789) | Haverhill City (60,879) | Ipswich (4,222) |
| Lawrence City (76,377) | Lynn City (90,329) | Lynnfield (11,596) |
| Marblehead (19,808) | Methuen Town City (47,255) | Nahant (3,410) |
| Newburyport City (17,416) | Peabody City (51,251) | Rockport (4,966) |
| Rowley (1,416) | Salem City (41,340) | Salisbury (4,869) |
| Saugus (26,628) | Swampscott (13,787) | Topsfield (2,717) |
Essex County Zip Codes
| 01810 (33,201) | 01830 (25,137) | 01832 (22,060) |
| 01833 (8,183) | 01834 (6,459) | 01835 (13,682) |
| 01840 (4,733) | 01841 (47,225) | 01843 (24,425) |
| 01844 (47,249) | 01845 (28,352) | 01860 (6,338) |
| 01901 (1,689) | 01902 (45,139) | 01904 (18,203) |
| 01905 (25,251) | 01906 (26,660) | 01907 (14,027) |
| 01908 (3,410) | 01913 (16,283) | 01915 (39,502) |
| 01921 (7,961) | 01922 (3,108) | 01923 (26,342) |
| 01929 (3,504) | 01930 (28,789) | 01937 (151) |
| 01938 (13,175) | 01940 (12,108) | 01944 (5,136) |
| 01945 (19,808) | 01949 (8,987) | 01950 (17,416) |
| 01951 (3,558) | 01952 (8,283) | 01960 (50,944) |
| 01966 (6,952) | 01969 (5,856) | 01970 (41,109) |
| 01982 (7,764) | 01983 (6,089) | 01984 (4,875) |
| 01985 (4,235) |