Sao Tome and Principe vs Tanzania, United Republic of: Share of births by age of mother

Sao Tome and Principe
18.1%
in 2023
Tanzania, United Republic of
17.8%
in 2023
Sao Tome and Principe rank
22nd
Tanzania, United Republic of rank
23rd

Share of births by age of mother over time

  • Sao Tome and Principe
  • Tanzania, United Republic of
5101520195019862023

How they compare

Sao Tome and Principe currently reports 18.1% against 17.8% in Tanzania, United Republic of, a difference of 0.3%.

The two have swapped places 5 times across 74 shared years of data; in 1950 it was Tanzania, United Republic of ahead.

Sao Tome and Principe ranks 22nd and Tanzania, United Republic of ranks 23rd of 236 countries.

Across the 8 decades both report, Sao Tome and Principe averaged higher in 4 and Tanzania, United Republic of in 4.

Head to head by decade

Decade Sao Tome and Principe Tanzania, United Republic of Difference Ahead
1950s 11.0% 21.9% 10.8% Tanzania, United Republic of
1960s 12.4% 21.4% 9.0% Tanzania, United Republic of
1970s 18.8% 19.8% 1.0% Tanzania, United Republic of
1980s 18.7% 17.1% 1.6% Sao Tome and Principe
1990s 18.7% 18.3% 0.4% Sao Tome and Principe
2000s 19.4% 17.6% 1.8% Sao Tome and Principe
2010s 16.7% 17.4% 0.7% Tanzania, United Republic of
2020s 17.9% 17.8% 0.1% Sao Tome and Principe

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of births by age of mother, Sao Tome and Principe or Tanzania, United Republic of?
Sao Tome and Principe, at 18.1% against 17.8% in Tanzania, United Republic of as of 2023.
What is the difference in share of births by age of mother between Sao Tome and Principe and Tanzania, United Republic of?
0.3%, with Sao Tome and Principe ahead.
How many years of comparable data are there for Sao Tome and Principe and Tanzania, United Republic of?
74 years are reported by both, from 1950 to 2023.
How do Sao Tome and Principe and Tanzania, United Republic of rank globally for share of births by age of mother?
Sao Tome and Principe ranks 22nd and Tanzania, United Republic of ranks 23rd of 236 countries.
Where does this data come from?
UN, World Population Prospects (2024) – processed by Our World in Data, published as Share of births by age of mother. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sao Tome and Principe vs Tanzania, United Republic of: Share of births by age of mother. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 16 September 2026, from https://population.statizoid.com/compare/share-of-births-by-age-of-mother/sao-tome-and-principe/tanzania/

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About this data

Indicator
Share of births by age of mother
Unit
%
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Number of live births in a calendar year.