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%.

Records

Postal identifiers

100.0%

Geocoded

BT18

Example code

Postal code	Locality	Administrative path	Coordinates
BT18	Holywood	Northern Ireland / County Down	54.6386, -5.8247

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

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Prefix BT1

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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.