Postal Code Finder
Registry / United Kingdom / Northern Ireland / County Down / Holywood

Holywood postal code BT18

Verified postal identifier in County Down, United Kingdom. Technical profile with precision geocoding and administrative hierarchy.

Verified data profile for Holywood

Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.

1
Records
1
Postal identifiers
100.0%
Geocoded
BT18
Example code
Postal code Locality Administrative path Coordinates
BT18 Holywood Northern Ireland / County Down 54.6386, -5.8247

Related postal lookups

United Kingdom
Country
Prefix BT1
Postal code range · 11 records
BT14
Nearby postal code · 4 records
BT15
Nearby postal code · 3 records
BT16
Nearby postal code · 2 records
BT17
Nearby postal code · 5 records
BT19
Nearby postal code · 4 records
BT2
Nearby postal code · 2 records

Local postal record details

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/united-kingdom/northern-ireland/county-down/holywood.

Records
1
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
1
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
BT18
Sample code from Holywood.
Code Place Hierarchy Coordinates
BT18 Holywood Northern Ireland / County Down 54.6386, -5.8247
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
Use the API
Query postal codes by country, place name, region or code prefix.
Implementation notes
Field definitions, canonical paths and practical lookup guidance.

Useful related pages

United Kingdom
Country
Prefix BT1
Postal code range · 11 records
BT14
Nearby postal code · 4 records
BT15
Nearby postal code · 3 records
BT16
Nearby postal code · 2 records
BT17
Nearby postal code · 5 records
BT19
Nearby postal code · 4 records
BT2
Nearby postal code · 2 records

Data questions

How should I validate BT18?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.

Validation and related lookup paths

Use this page to confirm that BT18 belongs to Holywood inside United Kingdom. For applications, validate the original postal code string together with the country and administrative hierarchy instead of relying on a global numeric pattern.

United Kingdom country lookup
Open top regions, formats and downloads.
Prefix BT1
Compare nearby postal identifiers.
Northern Ireland
Parent administrative area.
County Down
Parent administrative area.

Verified Technical Data

Postal Identifier BT18
Locality Name Holywood
Administrative L1 Northern Ireland
Administrative L2 County Down
Spatial Coordinates LAT: 54.6386
LNG: -5.8247

Spatial Verification Map

Centroid Location: The marker represents the verified geographic centroid for the BT18 identifier area.

Geographic & Administrative Context

The postal identifier BT18 is under the regional jurisdiction of United Kingdom. Within this territory, it is specifically managed as part of the Northern Ireland » County Down » Holywood administrative chain, ensuring precise logistical and geographic synchronization with official geocoded registries.

Nearby postal code lookups

Compare BT18 with adjacent identifiers in United Kingdom. These links keep the local code range connected without loading a large directory table.

BT14
Ballysillan
BT15
Antrim Road
BT16
Belfast
BT17
Belfast
BT19
Bangor
BT2
Belfast
BT20
Bangor
BT21
Donaghadee

Frequently Asked Questions: Holywood postal code guide

What is the postal structure for Holywood?

Holywood is represented in the United Kingdom postal registry with verified coordinates and administrative hierarchy fields.

Can I download postal code data for Holywood?

Yes. The dataset for Holywood can be exported in CSV, Excel and JSON formats from the download section on this page.

Is this postal code geocoded?

Yes. The record includes latitude and longitude coordinates and verified administrative labels for mapping and validation.

How should I validate BT18?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.