United Kingdom

BT21 post code

Post code details

1 place

Code

Place

Donaghadee

Region

Northern Ireland

County

—

Coordinates

54.6413, -5.5359

Accuracy

4 / 6

Country

United Kingdom

Location

OpenStreetMap ↗

54.6413, -5.5359© OpenStreetMap

Places under this code

Place	Region	County	Coordinates
Donaghadee	Northern Ireland	—	54.6413, -5.5359

Nearby codes

All →

BT1 BT10 BT10 BT11 BT11 BT11 BT12 BT12 BT12 BT12 BT12 BT13

Same code in other countries

This code only appears in this country.

FAQ

Which city is BT21 in?

Donaghadee, Northern Ireland, United Kingdom.

What are the coordinates of BT21?

54.6413, -5.5359

Is BT21 used in other countries?

No.

The data is unofficial and has known truncation; verify with the recipient and carrier for critical shipments. See data source & license → · Updated 2026-11-09. Attribution in