---
title: count
framework: swift
role: symbol
role_heading: Instance Property
path: swift/set/count
---

# count

The number of elements in the set.

## Declaration

```swift
var count: Int { get }
```

## Discussion

Discussion note: O(1).

## See Also

### Inspecting a Set

- [isEmpty](swift/set/isempty.md)
- [capacity](swift/set/capacity.md)