Country
Ireland
Location
Newcastle
Postal Code
K78

What is Newcastle (Ireland) postal/zip code?

The postal code for Newcastle is K78. Postal codes in Newcastle consist of 3 characters following the format ANN ANNN. Newcastle is located in Leinster, Ireland, and is part of the Northern Europe region. This postal code is essential for accurate mail delivery, online shopping, and official documentation. Whether you're sending a package, filling out a form, or verifying an address, using the correct postal code ensures your mail reaches its destination without delays. You can scan the QR code on the right to quickly save or share the complete address information for Newcastle.

QR Code for Newcastle Scan Address

How to Address Mail to Newcastle

Standard Address Format (click to edit)
RecipientJohn Doe
Street123 Example Street
DistrictNewcastle
City & PostalK78 Leinster
CountryIRELAND

Addressing Tips for Ireland - Newcastle

  • Postal code format: ANN ANNN
  • Write postal code before the city name
  • Country name in UPPERCASE on last line
  • Include district name for faster delivery
  • ISO country code: IE

Shipping to Newcastle, Ireland

🇮🇪
Domestic Delivery
1-3 days
Within Ireland
International
7-21 days
Varies by origin
Customs Threshold
€150
Duty-free limit

Local Carriers in Newcastle

An Post Fastway DPD

Newcastle: International Carriers

DHL FedEx UPS

Shipping Tips (Newcastle)

  • Always include postal code K78 for faster delivery
  • Items above €150 may incur customs duties
  • Track your package using the carrier's tracking number
  • Consider insurance for valuable shipments

Newcastle Ireland Location Information

Newcastle, Ireland Map
  • Region Europe
  • Subregion Northern Europe
  • State Leinster
  • Phone Code +353
  • Currency EUR
  • Coordinates 53.3011, -6.5022
Free Traffic Exchange

5 Postal Codes in Newcastle

Area State Place Postal Code
Newcastle Leinster Lucan K78
Newcastle Leinster Dublin 22 D22
Newcastle Leinster Dublin 24 D24
Newcastle Leinster Dublin 20 D20
Newcastle Leinster Dublin 15 D15

Frequently Asked Questions

The postal code of Newcastle, Leinster, Ireland is K78. This 3-character code follows the format ANN ANNN.
Newcastle has approximately 5 postal codes covering different areas and neighborhoods within the district.
Newcastle is located in Leinster, Ireland. It is part of the Europe region and Northern Europe subregion. The coordinates are 53.30111000, -6.50222000.
To call Newcastle, Ireland, you need to dial the international code +353 followed by the local number.
The currency used in Newcastle, Ireland is Euro (EUR). The currency symbol is .
The nearest major city to Newcastle is Leinster, approximately 0 km away.
You can verify Newcastle postal codes on PostalZipCode.co. Enter the postal code in the search bar to see its location, district, and city details.
Nearby Locations
City State Distance Latitude Longitude
Rathcoole Leinster 3 km 53.283 -6.473
Saggart Leinster 4 km 53.28 -6.444
Celbridge Leinster 5 km 53.342 -6.544
Clondalkin Leinster 7 km 53.324 -6.397
Jobstown Leinster 7 km 53.279 -6.408
Leixlip Leinster 7 km 53.366 -6.496
Lucan Leinster 7 km 53.357 -6.449
Kill Leinster 8 km 53.251 -6.592
South Dublin Leinster 8 km 53.286 -6.377
Cherry Orchard Leinster 9 km 53.336 -6.378
Other Ireland in States
State Distance Latitude Longitude
Dublin 17 km 53.35 -6.26
Kildare 23 km 53.212 -6.819
Meath 35 km 53.606 -6.656
Wicklow 36 km 52.986 -6.367
Laois 65 km 52.994 -7.332
Newcastle in Other Languages
Postal Codes by Country
Country Distance Latitude Longitude
Isle of Man 169 km 54.25 -4.5
United Kingdom 307 km 54 -2
Guernsey and Alderney 506 km 49.467 -2.583
Jersey 542 km 49.25 -2.167
Belgium 768 km 50.833 4
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Last updated: April 2026
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