Verified postal identifier in Guernsey Channel Islands, Guernsey. Technical profile with precision geocoding and administrative hierarchy.
Based on 1 records, 1 postal code values and 1 mapped localities. Coordinate coverage is 100.0%.
| Postal code | Locality | Administrative path | Coordinates |
|---|---|---|---|
| GY4 | St Martin | Guernsey Channel Islands | 49.45, -2.6 |
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/guernsey/guernsey-channel-islands/st-martin.
| Code | Place | Hierarchy | Coordinates |
|---|---|---|---|
| GY4 | St Martin | Guernsey Channel Islands | 49.45, -2.6 |
Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.
The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.
Use this page to confirm that GY4 belongs to St Martin inside Guernsey. For applications, validate the original postal code string together with the country and administrative hierarchy instead of relying on a global numeric pattern.
The postal identifier GY4 is under the regional jurisdiction of Guernsey. Within this territory, it is specifically managed as part of the Guernsey Channel Islands » St Martin administrative chain, ensuring precise logistical and geographic synchronization with official geocoded registries.
Compare GY4 with adjacent identifiers in Guernsey. These links keep the local code range connected without loading a large directory table.