---
title: subtitle
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkclusterannotation/subtitle
---

# subtitle

The subtitle string to display for the group of annotations.

## Declaration

```swift
var subtitle: String? { get set }
```

## Discussion

Discussion The cluster annotation object sets this property to a string that conveys how many additional annotations the group includes, except for the annotation with the title that the title property displays.

## See Also

### Getting the cluster attributes

- [title](mapkit/mkclusterannotation/title.md)