Nashua, NH ZIP Codes, Area Codes and Address Format

City guides  |  September 5, 2026  |  2 min read

Nashua is one of the busiest mail areas in New Hampshire, with 4 standard ZIP codes in Hillsborough County. Here is everything you need to format a Nashua address correctly.

State

New Hampshire (NH)

County

Hillsborough County

Standard ZIP codes

4

Time zone

Eastern

Nashua ZIP codes

These are the standard delivery ZIP codes for Nashua. The city has 5 ZIP codes in total when PO Box and unique codes are included.

• 03060
• 03062
• 03063
• 03064

Area codes in Nashua

Nashua phone numbers use 603. A single area code keeps local numbers easy to recognize.

Sample Nashua addresses

The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.

How to write an address in Nashua

• End the address with NASHUA, NH and the five-digit ZIP code.
• Put apartment or suite numbers at the end of the street line.
• Use USPS abbreviations such as ST, AVE and BLVD.
• Match the ZIP code to the street. Nashua has 4 codes, so the city name alone is not enough.

Other cities in Hillsborough County

Manchester, Amherst, Antrim

More New Hampshire cities

Lebanon, Antrim, Amherst, Alstead, Andover, or see all New Hampshire cities.