There are 81 zip codes in Middlesex County, Massachusetts. The most populated is 2148, located in Malden. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 02148 | 65,463 | Malden |
| 02155 | 63,873 | Medford |
| 02149 | 48,685 | Everett |
| 01752 | 41,391 | Marlborough |
| 01801 | 40,992 | Woburn |
| 02139 | 39,856 | Cambridge |
| 01702 | 38,898 | Framingham |
| 02138 | 38,006 | Cambridge |
| 01852 | 36,546 | Lowell |
| 01760 | 36,274 | Natick |
| 02472 | 35,300 | Watertown |
| 01701 | 32,973 | Framingham |
| 01851 | 32,323 | Lowell |
| 01826 | 32,309 | Dracut |
| 01821 | 30,854 | Billerica |
| 01876 | 30,817 | Tewksbury |
| 02453 | 30,365 | Waltham |
| 02176 | 29,477 | Melrose |
| 01854 | 29,062 | Lowell |
| 02474 | 28,167 | Arlington |
| 02145 | 27,692 | Somerville |
| 01880 | 27,026 | Wakefield |
| 02478 | 26,964 | Belmont |
| 01824 | 26,612 | Chelmsford |
| 01803 | 26,004 | Burlington |
| 01867 | 25,443 | Reading |
| 02143 | 25,329 | Somerville |
| 02144 | 25,022 | Somerville |
| 01886 | 24,524 | Westford |
| 01887 | 23,191 | Wilmington |
| 01720 | 23,081 | Acton |
| 02180 | 22,992 | Stoneham |
| 01890 | 22,809 | Winchester |
| 02140 | 21,553 | Cambridge |
| 01749 | 19,947 | Hudson |
| 02459 | 19,182 | Newton Center |
| 01776 | 18,926 | Sudbury |
| 01748 | 18,748 | Hopkinton |
| 01721 | 18,634 | Ashland |
| 02451 | 18,379 | Waltham |
| 01742 | 18,311 | Concord |
| 02421 | 17,865 | Lexington |
| 02476 | 17,739 | Arlington |
| 01850 | 16,806 | Lowell |
| 02420 | 16,356 | Lexington |
| 02452 | 15,830 | Waltham |
| 01864 | 15,529 | North Reading |
| 01746 | 14,902 | Holliston |
| 01730 | 14,408 | Bedford |
| 02141 | 14,402 | Cambridge |
| 01778 | 14,070 | Wayland |
| 02458 | 12,706 | Newton |
| 01879 | 12,385 | Tyngsboro |
| 02465 | 11,823 | West Newton |
| 02493 | 11,759 | Weston |
| 01463 | 11,667 | Pepperell |
| 01450 | 11,212 | Groton |
| 01862 | 11,126 | North Billerica |
| 01754 | 10,671 | Maynard |
| 01460 | 10,084 | Littleton |
| 02460 | 9,888 | Newtonville |
| 01863 | 9,570 | North Chelmsford |
| 02466 | 8,859 | Auburndale |
| 01432 | 8,118 | Ayer |
| 01469 | 7,168 | Townsend |
| 01775 | 7,111 | Stow |
| 01464 | 7,092 | Shirley |
| 02461 | 7,049 | Newton Highlands |
| 02468 | 5,589 | Waban |
| 01719 | 5,462 | Boxborough |
| 01773 | 5,216 | Lincoln |
| 01741 | 5,209 | Carlisle |
| 02142 | 4,474 | Cambridge |
| 01770 | 4,404 | Sherborn |
| 02464 | 3,440 | Newton Upper Falls |
| 01827 | 3,359 | Dunstable |
| 01431 | 3,187 | Ashby |
| 01474 | 1,902 | West Townsend |
| 01731 | 1,784 | Hanscom Afb |
| 02462 | 1,438 | Newton Lower Falls |
| 01718 | 737 | Acton |