44 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 01960 | Peabody | 54,474 |
| 01844 | Methuen | 53,420 |
| 01841 | Lawrence | 52,769 |
| 01902 | Lynn | 50,066 |
| 01970 | Salem | 44,738 |
| 01915 | Beverly | 41,994 |
| 01810 | Andover | 35,648 |
| 01845 | North Andover | 32,494 |
| 01930 | Gloucester | 30,075 |
| 01906 | Saugus | 28,773 |
| 01905 | Lynn | 28,221 |
| 01923 | Danvers | 27,991 |
| 01843 | Lawrence | 27,445 |
| 01830 | Haverhill | 26,530 |
| 01832 | Haverhill | 26,386 |
| 01904 | Lynn | 21,003 |
| 01945 | Marblehead | 20,470 |
| 01950 | Newburyport | 18,652 |
| 01913 | Amesbury | 17,403 |
| 01907 | Swampscott | 15,277 |
| 01835 | Haverhill | 14,782 |
| 01938 | Ipswich | 13,930 |
| 01940 | Lynnfield | 13,285 |
| 01949 | Middleton | 9,816 |
| 01952 | Salisbury | 9,281 |
| 01840 | Lawrence | 8,522 |
| 01833 | Georgetown | 8,432 |
| 01921 | Boxford | 8,250 |
| 01982 | South Hamilton | 7,680 |
| 01966 | Rockport | 7,009 |
| 01834 | Groveland | 6,777 |
| 01860 | Merrimac | 6,748 |
| 01983 | Topsfield | 6,564 |
| 01969 | Rowley | 6,251 |
| 01944 | Manchester | 5,403 |
| 01984 | Wenham | 4,929 |
| 01985 | West Newbury | 4,591 |
| 01929 | Essex | 3,621 |
| 01922 | Byfield | 3,450 |
| 01951 | Newbury | 3,327 |
| 01908 | Nahant | 3,325 |
| 01901 | Lynn | 2,419 |
| 01965 | Prides Crossing | 671 |
| 01937 | Hathorne | 107 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 44 ZCTAs in Essex County, Massachusetts (US Census).