---
title: identifier
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkmapitem/identifier-swift.property
---

# identifier

A unique identifier for a place.

## Declaration

```swift
var identifier: MKMapItem.Identifier? { get }
```

## Mentioned in

Identifying unique locations with Place IDs

## Discussion

Discussion An identifier uniquely identifies a place, such as a business or a landmark. You can persist an identifier and use it later to recall information about place.

## See Also

### Accessing the map item attributes

- [MKMapItem.Identifier](mapkit/mkmapitem/identifier-swift.class.md)
- [alternateIdentifiers](mapkit/mkmapitem/alternateidentifiers.md)
- [isCurrentLocation](mapkit/mkmapitem/iscurrentlocation.md)
- [name](mapkit/mkmapitem/name.md)
- [placemark](mapkit/mkmapitem/placemark.md)
- [pointOfInterestCategory](mapkit/mkmapitem/pointofinterestcategory.md)
- [phoneNumber](mapkit/mkmapitem/phonenumber.md)
- [timeZone](mapkit/mkmapitem/timezone.md)
- [url](mapkit/mkmapitem/url.md)