United Kingdom
GY4 post code
Post code details
1 placeCode
Place
St Martin
Region
—
County
Guernsey Channel Islands
Coordinates
49.4371, -2.5548
Accuracy
4 / 6
Country
United Kingdom
Location
OpenStreetMap ↗








49.4371, -2.5548© OpenStreetMap
Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| St Martin | — | Guernsey Channel Islands | 49.4371, -2.5548 |
Same code in other countries
1| Country | Place | Region |
|---|---|---|
| GG Guernsey | St Martin | — |
FAQ
Which city is GY4 in?
St Martin, , United Kingdom.
What are the coordinates of GY4?
49.4371, -2.5548
Is GY4 used in other countries?
Yes, 1 other countries.
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