---
title: identifier
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/locale/region-swift.struct/identifier
---

# identifier

The BCP 47 identifier of the region.

## Declaration

```swift
var identifier: String { get set }
```

## See Also

### Examining region properties

- [containingRegion](foundation/locale/region-swift.struct/containingregion.md)
- [continent](foundation/locale/region-swift.struct/continent.md)
- [isISORegion](foundation/locale/region-swift.struct/isisoregion.md)
- [subRegions](foundation/locale/region-swift.struct/subregions.md)