Middlesex County, located in the state of Connecticut, 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
06073
06413
06422
06424
06441
06420
06442
06456
06426
06475
06023
06469
06480
06414
06423
06416
06409
06457
06455
06459
06412
06415
06417
06419
06438
06498
06481

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 27 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.