Average age of mothers at childbirth by mother's birth year
Use escrito dataset owid.average-age-of-mothers-birth-cohort
Average age at which women in a specific birth cohort have their first child. It is standardized for the age structure of the female population of reproductive age. Average age at which women in a specific birth cohort have their second child. It is standardized for the age structure of the female population of reproductive age. Average age at which women in a specific birth cohort have their third child. It is standardized for the age structure of the female population of reproductive age. Average age at which women in a specific birth cohort have their fourth child. It is standardized for the age structure of the female population of reproductive age. Average age at which women in a specific birth cohort have their fifth (or greater) child. It is standardized for the age structure of the female population of reproductive age. Average age at which women in a specific birth cohort have children. It is standardized for the age structure of the female population of reproductive age.
Cite as: Human Fertility Database (2026) – with minor processing by Our World in Data. “1st birth – HFD” [dataset]. Human Fertility Database, “Human Fertility Database” [original data].
- Publisher
- Our World in Data
- Tier
- Official
- Covers
- 1876–1975
- Places
- Countries, regions and groups of the world
- Updated
- annual
- Last modified
- 2026-10-22
- Units
- years
- License
- Creative Commons Attribution 4.0 International
- Method
- https://ourworldindata.org/grapher/average-age-of-mothers-birth-cohort
Columns
| Name | Type | Description |
|---|---|---|
| entity | text | country, region or group |
| code | text | ISO 3166-1 alpha-3, OWID_ for OWID's own groups, empty for most regions |
| year | integer | |
| cmab__birth_order_1 | number | 1st birth (years) |
| cmab__birth_order_2 | number | 2nd birth (years) |
| cmab__birth_order_3 | number | 3rd birth (years) |
| cmab__birth_order_4 | number | 4th birth (years) |
| cmab__birth_order_5p | number | 5th birth or higher (years) |
| cmab__birth_order_total | number | All (years) |
Dimensions
| Name | Values |
|---|---|
| entity | |
| year |