- Who
- Isla McNabb
- What
- 2:195 year(s):day(s)
- Where
- United States (Louisville)
- When
The youngest Mensa member (female) is Isla McNabb (USA, b. 19 November 2019), who is 2 years and 195 days old, as verified in Louisville, Kentucky, USA on 2 June 2022.
Isla attempted an IQ test after proving she could read at just two years old, and her score was in the 99th percentile.
