Hillsborough County, located in the state of New Hampshire, 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 Hillsborough County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
03033
03086
03108
03449
03051
03054
03062
03055
03045
03052
03049
03109
03101
03060
03064
03082
03070
03084
03057
03110
03111
03063
03244
03281
03103
03071
03105
03043
03104
03102
03076
03452
03061
03031
03106
03458
03442
03280
03047
03440
03048
03468

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

Hillsborough 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 Hillsborough County County?

There are approximately 42 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Hillsborough 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.