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New Castle ZIP Code Finder by Area and Number New Hampshire

The New Castle zip code is 03854 in New Hampshire helps people find the correct mailing location for homes, businesses, and services in New Castle.

Welcome to our complete guide for New Castle, New Hampshire ZIP Codes. Whether you're moving to New Castle, sending mail, searching for an address, or looking for local postal information, this page provides everything you need to know about the ZIP Codes serving New Castle, New Hampshire.

Every New Castle ZIP Code is assigned by the United States Postal Service (USPS) to support efficient mail delivery and address identification. In addition to postal services, New Castle ZIP Codes are widely used for online shopping, navigation, banking, insurance, healthcare, business operations, and government services.

CityNew Castle
Zip Code03854
StateNew Hampshire
CountyRockingham
Population948
Latitude43.06558
Longitude-70.72003
Time ZoneAmerica/New_York

The New Castle New Hampshire zip code is used by USPS for mail delivery, shipping, and address identification across New Castle and nearby New Hampshire cities.

New Castle New Hampshire is a growing city in New Hampshire, and many people search for the New Castle zip code, New Castle postal code, New Castle NH zip code, and New Castle New Hampshire mailing code when sending mail or locating addresses. The zip code in New Castle is important for deliveries, online orders, location searches, and business listings in New Castle.

If you are searching for the New Castle zip code list, New Castle NH postal code, New Castle New Hampshire city zip code, or New Castle mailing zip code, this page helps you quickly find the correct New Castle zip code. Many residents, travelers, and businesses use the New Castle zip code lookup to confirm the correct New Castle mailing address.

The New Castle zip code area covers neighborhoods, residential communities, and business locations in New Castle NH. Whether you are looking for the New Castle city zip code, New Castle New Hampshire postal code, New Castle NH mailing code, or New Castle location zip code, the New Castle zip code New Hampshire helps identify the correct postal region in New Hampshire.

People also search for zip codes near New Castle, New Castle postal codes, New Castle NH zip code lookup, New Castle address zip code, and New Castle New Hampshire USPS zip code to find nearby locations in New Hampshire.

ZIP Codes in New Castle

The following ZIP Codes serve New Castle, New Hampshire.

ZIP CodeCountyPopulationTime Zone
03854Rockingham948America/New_York

Whether you're searching for a residential, commercial, or mailing address, the ZIP Code list above makes it easy to find the correct postal code for New Castle.

About New Castle, New Hampshire

New Castle is located in Rockingham County, New Hampshire, and is served by one or more ZIP Codes assigned by USPS. Residents, businesses, and visitors rely on these ZIP Codes for mail delivery, package shipping, address verification, and location-based services.

Some cities have a single ZIP Code, while larger cities may have multiple ZIP Codes covering different neighborhoods or business districts.

If you're searching for a New Castle ZIP Code, this page provides the latest available information to help you find the correct postal code quickly.

New Castle ZIP Code Map

The New Castle ZIP Code map helps visitors understand the geographic coverage of ZIP Code areas throughout the city.

The map can help you:

  • Locate neighborhoods
  • Find nearby ZIP Codes
  • Explore surrounding communities
  • Plan travel routes
  • Understand delivery areas

Find a ZIP Code in New Castle

If you need to locate a ZIP Code within New Castle, you can search using:

  • Street address
  • Neighborhood
  • Business name
  • Landmark
  • USPS mailing address

Using the correct New Castle ZIP Code helps improve mail delivery, shipping accuracy, and address verification.

About Living in New Castle

New Castle, New Hampshire is part of Rockingham County and is home to approximately 948 residents. The city operates in the America/New_York time zone and is identified by the geographic coordinates 43.06558 latitude and -70.72003 longitude.

Residents enjoy access to local schools, businesses, public services, healthcare facilities, parks, and transportation networks. Whether you're relocating, visiting, or starting a business, knowing the correct ZIP Code helps simplify everyday tasks.

Common Uses of New Castle ZIP Codes

ZIP Codes in New Castle are commonly used for:

  • USPS mail delivery
  • Package shipping
  • Online shopping
  • Address verification
  • Banking
  • Insurance
  • Government services
  • Emergency services
  • Navigation
  • Real estate
  • Business operations
  • Delivery planning

Why New Castle ZIP Codes Matter

Using the correct New Castle ZIP Code offers several benefits.

For Residents
  • Faster mail delivery
  • Accurate online orders
  • Easier address verification
  • Better navigation
For Businesses
  • Shipping optimization
  • Customer management
  • Delivery planning
  • Local marketing

Frequently Asked Questions

New Castle is served by one or more ZIP Codes listed on this page.
New Castle is currently served by 1 ZIP Code. The number of ZIP Codes depends on the size of the city and USPS delivery routes.
New Castle is located in Rockingham County.
New Castle is located in New Hampshire.
The estimated population of New Castle is 948.
New Castle follows the America/New_York time zone.
Use your street address or browse the ZIP Code list available on this page.
No. Some ZIP Codes may include residential, commercial, government, or PO Box delivery areas.
Using the correct ZIP Code helps improve mail delivery, shipping accuracy, navigation, and address verification.
Official ZIP Code information is maintained by the United States Postal Service (USPS).

Conclusion

Whether you're looking for a mailing address, planning a move, or researching local information, this New Castle, New Hampshire ZIP Code guide makes it easy to find the postal information you need. Explore the ZIP Code list, use the map, and browse additional location details to learn more about New Castle and its surrounding communities.

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