What is the difference in average age of mothers at childbirth between Kiribati and Northern Mariana Islands?

0.03 years, with Kiribati ahead.

How many years of comparable data are there for Kiribati and Northern Mariana Islands?

74 years are reported by both, from 1950 to 2023.

Where does this data come from?

Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Average age of mothers at childbirth. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Kiribati vs Northern Mariana Islands: Average age of mothers at childbirth

Kiribati

29.08 years

in 2023

Northern Mariana Islands

29.05 years

in 2023

Kiribati rank

127th

Northern Mariana Islands rank

130th

Average age of mothers at childbirth over time

Kiribati
Northern Mariana Islands

How they compare

Kiribati currently reports 29.08 years against 29.05 years in Northern Mariana Islands, a difference of 0.03 years.

The two have swapped places 1 time across 74 shared years of data; in 1950 it was Northern Mariana Islands ahead.

Kiribati ranks 127th and Northern Mariana Islands ranks 130th of 236 countries.

Across the 8 decades both report, Kiribati averaged higher in 6 and Northern Mariana Islands in 2.

Head to head by decade

Decade	Kiribati	Northern Mariana Islands	Difference	Ahead
1950s	29.25 years	29.48 years	0.2377 years	Northern Mariana Islands
1960s	29.24 years	29.35 years	0.109 years	Northern Mariana Islands
1970s	29.2 years	28.68 years	0.5162 years	Kiribati
1980s	29.46 years	27.9 years	1.56 years	Kiribati
1990s	29.8 years	27.38 years	2.42 years	Kiribati
2000s	29.55 years	27.81 years	1.75 years	Kiribati
2010s	29.24 years	28.77 years	0.4681 years	Kiribati
2020s	29.08 years	29.03 years	0.0545 years	Kiribati

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth, Kiribati or Northern Mariana Islands?: Kiribati, at 29.08 years against 29.05 years in Northern Mariana Islands as of 2023.
What is the difference in average age of mothers at childbirth between Kiribati and Northern Mariana Islands?: 0.03 years, with Kiribati ahead.
How many years of comparable data are there for Kiribati and Northern Mariana Islands?: 74 years are reported by both, from 1950 to 2023.
How do Kiribati and Northern Mariana Islands rank globally for average age of mothers at childbirth?: Kiribati ranks 127th and Northern Mariana Islands ranks 130th of 236 countries.
Where does this data come from?: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Average age of mothers at childbirth. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Kiribati vs Northern Mariana Islands: Average age of mothers at childbirth. Statizoid, drawing on Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 31 August 2026, from https://reference.statizoid.com/compare/period-average-age-of-mothers/kiribati/northern-mariana-islands/

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<a href="https://reference.statizoid.com/compare/period-average-age-of-mothers/kiribati/northern-mariana-islands/">Kiribati vs Northern Mariana Islands: Average age of mothers at childbirth</a> — Statizoid

About this data

Indicator: Average age of mothers at childbirth
Unit: years
Source: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 236 places, 17,683 data points, 1891–2023
Last refreshed: 28 August 2026

Mean age of mothers at the birth of their children if women were subject throughout their lives to the age-specific fertility rates observed in a given year.