New Castle NH ZIP Code

New Castle city is located in New Hampshire State, Rockingham County and has a unique zip code assigned by the US Postal Service Office.

You can search for the New Castle NH zip code by its streets and block numbers if we have some of the New Castle streets loaded in our website

New Castle Area Code is 603 and Time Zone is Eastern (GMT -05:00).

New Castle Zip Code - New Hampshire

The basic format consists of five decimal numerical digits assigned to the New Castle City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the New Castle ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in New Castle, New Hampshire.

The New Castle Zip Code is 03854.

If you want to send a mail to New Castle City, you should use the 03854 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded New Castle ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 03854 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a New Castle city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in New Hampshire.

New Castle, New Hampshire - MAP

What is the New Castle Zip Code?

The New Castle Zip Code in New Hampshire is 03854.

ZIP Plus 4 New Castle - US Streets Zip Codes

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New Castle, New Hampshire -

New Castle ZIP Code Lookup

03854 Zip Code File:
Zip Code: 03854,
City: New Castle
New Castle Area Code: 603
New Castle, NH - Time Zone: Eastern (GMT -05:00)
County: Rockingham
City Alias: New Castle, Newcastle
State: New Hampshire
State Abb: NH

New Hampshire Zip+4 - Nearby New Castle Cities

Cities near New Castle in New Hampshire
(straight line)

View more New Hampshire zip codes

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