How many years of comparable data are there for Bosnia and Herzegovina and Guam?

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.

Bosnia and Herzegovina vs Guam: Average age of mothers at childbirth

Bosnia and Herzegovina

29.04 years

in 2023

Guam

29.05 years

in 2023

Bosnia and Herzegovina rank

132nd

Guam rank

131st

Average age of mothers at childbirth over time

Bosnia and Herzegovina
Guam

How they compare

Guam currently reports 29.05 years against 29.04 years in Bosnia and Herzegovina, a difference of 0.01 years.

The two have swapped places 5 times across 74 shared years of data; in 1950 it was Bosnia and Herzegovina ahead.

Bosnia and Herzegovina ranks 132nd and Guam ranks 131st of 236 countries.

Across the 8 decades both report, Bosnia and Herzegovina averaged higher in 2 and Guam in 6.

Head to head by decade

Decade	Bosnia and Herzegovina	Guam	Difference	Ahead
1950s	29.72 years	28.66 years	1.06 years	Bosnia and Herzegovina
1960s	28.47 years	28.64 years	0.1696 years	Guam
1970s	27.07 years	27.5 years	0.4308 years	Guam
1980s	26.29 years	26.84 years	0.5511 years	Guam
1990s	26.48 years	27.16 years	0.6757 years	Guam
2000s	27.24 years	27.41 years	0.1669 years	Guam
2010s	28.71 years	28.51 years	0.1943 years	Bosnia and Herzegovina
2020s	29.03 years	29.03 years	0.0053 years	Guam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average age of mothers at childbirth, Bosnia and Herzegovina or Guam?: Guam, at 29.05 years against 29.04 years in Bosnia and Herzegovina as of 2023.
What is the difference in average age of mothers at childbirth between Bosnia and Herzegovina and Guam?: 0.01 years, with Guam ahead.
How many years of comparable data are there for Bosnia and Herzegovina and Guam?: 74 years are reported by both, from 1950 to 2023.
How do Bosnia and Herzegovina and Guam rank globally for average age of mothers at childbirth?: Bosnia and Herzegovina ranks 132nd and Guam ranks 131st 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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Bosnia and Herzegovina vs Guam: 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 07 September 2026, from https://reference.statizoid.com/compare/period-average-age-of-mothers/bosnia-and-herzegovina/guam/

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<a href="https://reference.statizoid.com/compare/period-average-age-of-mothers/bosnia-and-herzegovina/guam/">Bosnia and Herzegovina vs Guam: 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.