44 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 01960 | Peabody | 53,961 |
| 01844 | Methuen | 53,015 |
| 01841 | Lawrence | 52,761 |
| 01902 | Lynn | 51,680 |
| 01970 | Salem | 44,115 |
| 01915 | Beverly | 41,656 |
| 01810 | Andover | 35,608 |
| 01845 | North Andover | 31,881 |
| 01930 | Gloucester | 29,862 |
| 01906 | Saugus | 28,599 |
| 01843 | Lawrence | 28,444 |
| 01923 | Danvers | 27,778 |
| 01905 | Lynn | 27,188 |
| 01830 | Haverhill | 26,685 |
| 01832 | Haverhill | 26,065 |
| 01945 | Marblehead | 20,390 |
| 01904 | Lynn | 20,103 |
| 01950 | Newburyport | 18,444 |
| 01913 | Amesbury | 17,277 |
| 01907 | Swampscott | 15,279 |
| 01835 | Haverhill | 14,637 |
| 01938 | Ipswich | 13,820 |
| 01940 | Lynnfield | 13,183 |
| 01949 | Middleton | 9,727 |
| 01952 | Salisbury | 9,217 |
| 01833 | Georgetown | 8,380 |
| 01921 | Boxford | 8,229 |
| 01982 | South Hamilton | 7,646 |
| 01840 | Lawrence | 7,092 |
| 01966 | Rockport | 6,977 |
| 01834 | Groveland | 6,747 |
| 01860 | Merrimac | 6,707 |
| 01983 | Topsfield | 6,535 |
| 01969 | Rowley | 6,214 |
| 01944 | Manchester | 5,368 |
| 01984 | Wenham | 4,930 |
| 01985 | West Newbury | 4,536 |
| 01922 | Byfield | 3,791 |
| 01929 | Essex | 3,605 |
| 01908 | Nahant | 3,328 |
| 01951 | Newbury | 2,938 |
| 01901 | Lynn | 1,934 |
| 01965 | Prides Crossing | 752 |
| 01937 | Hathorne | 146 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 44 ZCTAs in Essex County, Massachusetts (US Census).