Middlesex
Source:
Massachusetts
Middlesex is a megacounty-scale in Massachusetts with 81 ZIP codes, 1,494,025 people, and top-decile household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Middlesex, MA sits among US counties with a top-decile household income, on a megacounty-scale population base, across a wide multi-ZIP mosaic.
- Top 1%
- household income vs 3,210 US counties
- 1,494,025
- combined ZIP population
- 81
- USPS ZIP codes covered
- $151,474
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Middlesex lands in the national county income distribution as top-decile household income on megacounty-scale footing (FIPS 25017, 81 ZIPs, combined population 1,494,025). Sort the ZIP table by population before treating the county mean as uniform.
High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 02148 (Malden) with 59,503 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 25017, so scorecards stay county-keyed while household income stays ZIP-keyed.
Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.
81
Total ZIPs
1,494,025
Total Population
ZIP Codes in Middlesex
Side-by-side: Compare 02148 vs 02155 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 02148 | Malden | 59,503 | 4,554 |
| 02155 | Medford | 57,964 | 2,731 |
| 02149 | Everett | 41,550 | 4,687 |
| 01801 | Woburn | 38,903 | 1,186 |
| 01752 | Marlborough | 38,499 | 712 |
| 01702 | Framingham | 37,206 | 1,776 |
| 02139 | Cambridge | 36,349 | 9,009 |
| 02138 | Cambridge | 36,314 | 5,116 |
| 01852 | Lowell | 33,508 | 2,603 |
| 01760 | Natick | 32,786 | 854 |
| 02472 | Watertown | 32,014 | 3,062 |
| 01701 | Framingham | 31,217 | 710 |
| 01821 | Billerica | 30,310 | 706 |
| 01851 | Lowell | 30,190 | 3,485 |
| 01826 | Dracut | 29,422 | 550 |
| 02453 | Waltham | 28,968 | 3,193 |
| 01876 | Tewksbury | 28,667 | 541 |
| 01854 | Lowell | 27,606 | 2,709 |
| 02176 | Melrose | 26,983 | 2,225 |
| 02474 | Arlington | 26,312 | 3,330 |
| 02145 | Somerville | 25,439 | 7,036 |
| 01824 | Chelmsford | 24,911 | 542 |
| 01880 | Wakefield | 24,733 | 1,382 |
| 02478 | Belmont | 24,664 | 2,051 |
| 02143 | Somerville | 24,514 | 6,130 |
| 01803 | Burlington | 24,487 | 807 |
| 01867 | Reading | 23,956 | 929 |
| 02144 | Somerville | 23,891 | 8,523 |
| 01887 | Wilmington | 22,325 | 508 |
| 01886 | Westford | 21,951 | 280 |
| 02180 | Stoneham | 21,437 | 1,376 |
| 01890 | Winchester | 21,382 | 1,369 |
| 01720 | Acton | 21,361 | 418 |
| 02459 | Newton Center | 19,095 | 1,474 |
| 01749 | Hudson | 19,063 | 639 |
| 01742 | Concord | 17,726 | 280 |
| 01776 | Sudbury | 17,659 | 281 |
| 02140 | Cambridge | 17,607 | 5,888 |
| 02451 | Waltham | 17,426 | 1,218 |
| 02421 | Lexington | 17,342 | 680 |
| 01721 | Ashland | 16,593 | 519 |
| 02476 | Arlington | 16,532 | 3,050 |
| 01850 | Lowell | 15,237 | 4,327 |
| 01748 | Hopkinton | 14,925 | 220 |
| 01864 | North Reading | 14,892 | 437 |
| 02452 | Waltham | 14,238 | 1,485 |
| 02420 | Lexington | 14,052 | 824 |
| 01746 | Holliston | 13,547 | 280 |
| 01730 | Bedford | 13,221 | 373 |
| 01778 | Wayland | 13,109 | 333 |
| 02458 | Newton | 12,131 | 2,346 |
| 02141 | Cambridge | 11,910 | 7,143 |
| 02465 | West Newton | 11,710 | 2,016 |
| 01463 | Pepperell | 11,497 | 197 |
| 01879 | Tyngsboro | 11,305 | 260 |
| 02493 | Weston | 11,261 | 259 |
| 01450 | Groton | 10,646 | 125 |
| 01862 | North Billerica | 10,227 | 427 |
| 01754 | Maynard | 10,106 | 749 |
| 01460 | Littleton | 8,924 | 209 |
| 01863 | North Chelmsford | 8,891 | 743 |
| 02460 | Newtonville | 8,742 | 2,512 |
| 02466 | Auburndale | 8,096 | 1,747 |
| 01464 | Shirley | 7,211 | 186 |
| 01432 | Ayer | 7,089 | 323 |
| 02461 | Newton Highlands | 7,059 | 1,873 |
| 01469 | Townsend | 6,801 | 115 |
| 01775 | Stow | 6,590 | 147 |
| 02468 | Waban | 5,273 | 1,374 |
| 01773 | Lincoln | 5,112 | 145 |
| 01719 | Boxborough | 4,996 | 188 |
| 01741 | Carlisle | 4,852 | 123 |
| 01770 | Sherborn | 4,119 | 101 |
| 01827 | Dunstable | 3,179 | 75 |
| 02142 | Cambridge | 3,141 | 4,363 |
| 01431 | Ashby | 3,074 | 50 |
| 02464 | Newton Upper Falls | 2,953 | 2,022 |
| 01474 | West Townsend | 2,125 | 83 |
| 02462 | Newton Lower Falls | 1,554 | 1,137 |
| 01731 | Hanscom Afb | 1,396 | 680 |
| 01718 | Acton | 469 | 3,900 |
Frequently Asked Questions
What is the population of Middlesex?
Middlesex has a total population of 1,494,025 across 81 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Middlesex?
Middlesex includes 81 ZIP codes: 02148, 02155, 02149, 01801, 01752, 01702, 02139, 02138, 01852, 01760, and more.