Country
United Kingdom
State
Castlereagh
Postal Code
BT6 9LQ

What is Castlereagh (United Kingdom) postal/zip code?

The postal code for Castlereagh is BT6 9LQ. Postal codes in Castlereagh consist of 7 characters following the format A(A)N(N)(A) NAA. Castlereagh is located in United Kingdom, 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 Castlereagh.

QR Code for Castlereagh Scan Address

How to Address Mail to Castlereagh

Standard Address Format (click to edit)
RecipientJohn Doe
Street123 Example Street
City & PostalBT6 9LQ Castlereagh
CountryUNITED KINGDOM

Addressing Tips for United Kingdom - Castlereagh

  • Postal code format: A(A)N(N)(A) NAA
  • Write postal code before the city name
  • Country name in UPPERCASE on last line
  • Include state name for faster delivery
  • ISO country code: GB

Shipping to Castlereagh, United Kingdom

🇬🇧
Domestic Delivery
1-3 days
Within United Kingdom
International
7-21 days
Varies by origin
Customs Threshold
£135
Duty-free limit

Local Carriers in Castlereagh

Royal Mail Yodel Evri (Hermes) DPD

Castlereagh: International Carriers

DHL FedEx UPS

Shipping Tips (Castlereagh)

  • Always include postal code BT6 9LQ for faster delivery
  • Items above £135 may incur customs duties
  • Track your package using the carrier's tracking number
  • Consider insurance for valuable shipments

Castlereagh United Kingdom Location Information

Castlereagh, United Kingdom Map
  • Region Europe
  • Subregion Northern Europe
  • Country United Kingdom
  • Phone Code +44
  • Currency GBP
  • Coordinates 54.5757, -5.8884
Free Traffic Exchange

5 Postal Codes in Castlereagh

State Place Postal Code
Castlereagh Belfast BT6 9LQ
Castlereagh Belfast BT6 9NA
Castlereagh Belfast BT6 9LX
Castlereagh Belfast BT6 9LW
Castlereagh Belfast BT6 9LU

0 Cities in Castlereagh

City State Distance Latitude Longitude

Frequently Asked Questions

The postal code of Castlereagh, United Kingdom is BT6 9LQ. This 7-character code follows the format A(A)N(N)(A) NAA.
Castlereagh has approximately 5 postal codes covering different areas and neighborhoods within the city.
Castlereagh is located in United Kingdom. It is part of the Europe region and Northern Europe subregion. The coordinates are 54.57567900, -5.88840280.
To call Castlereagh, United Kingdom, you need to dial the international code +44 followed by the local number.
The currency used in Castlereagh, United Kingdom is British Pound (GBP). The currency symbol is £.
Castlereagh has 0 districts/neighborhoods, each with their own postal code area.
Castlereagh is located in the Europe/London time zone.
Other United Kingdom in States
State Distance Latitude Longitude
Belfast district 6 km 54.617 -5.953
Newtownabbey Borough Council 12 km 54.679 -5.959
Antrim and Newtownabbey 14 km 54.696 -5.948
North Down Borough Council 16 km 54.654 -5.672
Carrickfergus Borough Council 17 km 54.726 -5.809
Castlereagh in Other Languages
Postal Codes by Country
Country Distance Latitude Longitude
Isle of Man 97 km 54.25 -4.5
Ireland 223 km 53 -8
Guernsey and Alderney 611 km 49.467 -2.583
Jersey 645 km 49.25 -2.167
Belgium 784 km 50.833 4
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Last updated: April 2026
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