Middlesex County, located in the state of Massachusetts, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to Middlesex County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
01462
01464
01776
01803
01810
01854
01862
01879
02030
02054
02143
02476
01853
01469
01703
01784
01805
01460
01746
01850
01865
01867
01876
01880
01887
02149
02238
02453
02454
02466
01752
01749
01778
02138
02142
02145
02151
02452
02465
02461
02474
02471
01718
01866
01432
01431
01451
01701
01730
01801
01822
02140
02459
01463
01474
01720
01742
01821
01851
01863
02148
02150
01741
02462
01472
02477
01532
01721
01748
01760
01770
01826
01886
02176
02451
02467
02478
01775
02464
01824
01827
01852
01864
02155
02180
02420
02460
02472
02493
01434
01773
01888
02455
01450
01702
01754
01890
01906
02139
02141
02144
02421
02458
01719
02468
01731
01704
01889

To know more about Middlesex County, click the button below:

Middlesex County Information

Use this tool to find your area details by using zip code.

ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in Middlesex County County?

There are approximately 108 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Middlesex County overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.