# Birthdate of child 4

Indicates the birth year and month of an individual's fourth child.

- API name: `birthdate_of_child_4`
- Category: Demography
- Type · unit: Date
- Individuals with a value: 3.8M (1.5%)
- Latest collection: Jun 1, 2026, refreshed every two months
- How values combine: Read from a single source field.
- Middle 50% of values: Aug 2016 to Apr 2021
- Derivations:
  - Declared — the attribute is self-reported by the person.

## Links

- [Catalog page](/catalog/v2/birthdate_of_child_4)
- [Published statistics (JSON)](https://static.faraday.ai/figv2/birthdate_of_child_4.json)
- [API reference](/docs/reference/getattribute)