Statizoid

Average age of mothers at childbirth in Guam

Guam: Average age of mothers at childbirth was 29.05 years in 2023. ▬ Flat

Latest (2023)
29.05 years
Change on year
up 0.0%
World rank
131st
of 236 countries
All-time high
29.16 years
in 1950
All-time low
26.75 years
in 1984
Years of data
74
1950–2023

Average age of mothers at childbirth in Guam, 1950–2023

0102030195019862023

Source: Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in years.

Analysis

In 2023, average age of mothers at childbirth in Guam stood at 29.05 years.

Compared with earlier readings it is up 2.7% over ten years.

Over the whole period, average age of mothers at childbirth in Guam peaked at 29.16 years in 1950 and was at its lowest, 26.75 years, in 1984.

That places Guam 131st out of 236 countries with data for 2023, putting it in the middle of the range.

Average age of mothers at childbirth in Guam, year by year

Year years Change
1950 29.16 years —
1951 29.02 years -0.5%
1952 28.84 years -0.6%
1953 28.67 years -0.6%
1954 28.64 years -0.1%
1955 28.55 years -0.3%
1956 28.39 years -0.6%
1957 28.38 years -0.0%
1958 28.44 years +0.2%
1959 28.49 years +0.2%
1960 28.5 years +0.0%
1961 28.59 years +0.3%
1962 28.68 years +0.3%
1963 28.85 years +0.6%
1964 28.94 years +0.3%
1965 28.89 years -0.2%
1966 28.78 years -0.4%
1967 28.66 years -0.4%
1968 28.31 years -1.2%
1969 28.16 years -0.5%
1970 28.04 years -0.4%
1971 27.91 years -0.5%
1972 27.78 years -0.5%
1973 27.64 years -0.5%
1974 27.51 years -0.5%
1975 27.4 years -0.4%
1976 27.28 years -0.4%
1977 27.25 years -0.1%
1978 27.15 years -0.4%
1979 27.02 years -0.5%
1980 26.98 years -0.2%
1981 26.84 years -0.5%
1982 26.8 years -0.2%
1983 26.79 years -0.0%
1984 26.75 years -0.2%
1985 26.76 years +0.1%
1986 26.76 years -0.0%
1987 26.85 years +0.3%
1988 26.9 years +0.2%
1989 26.94 years +0.2%
1990 26.98 years +0.2%
1991 27.03 years +0.2%
1992 27.07 years +0.2%
1993 27.1 years +0.1%
1994 27.13 years +0.1%
1995 27.18 years +0.2%
1996 27.23 years +0.2%
1997 27.28 years +0.2%
1998 27.28 years +0.0%
1999 27.29 years +0.0%
2000 27.29 years +0.0%
2001 27.3 years +0.0%
2002 27.29 years -0.0%
2003 27.3 years +0.0%
2004 27.35 years +0.2%
2005 27.36 years +0.1%
2006 27.41 years +0.2%
2007 27.46 years +0.2%
2008 27.62 years +0.6%
2009 27.73 years +0.4%
2010 27.87 years +0.5%
2011 27.95 years +0.3%
2012 28.09 years +0.5%
2013 28.28 years +0.7%
2014 28.48 years +0.7%
2015 28.71 years +0.8%
2016 28.82 years +0.4%
2017 28.93 years +0.4%
2018 29 years +0.2%
2019 29.01 years +0.0%
2020 29.02 years +0.0%
2021 29.03 years +0.0%
2022 29.04 years +0.0%
2023 29.05 years +0.0%

Guam compared with similar countries

  • Guam's 29.05 years is below the median for high income countries, which is 30.49 years, 95% of the median. (85 countries reporting)
  • Guam's 29.05 years is below the median for East Asia & Pacific, which is 29.17 years, 100% of the median. (37 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1950s 28.66 years 28.38 years 29.16 years 10
1960s 28.64 years 28.16 years 28.94 years 10
1970s 27.5 years 27.02 years 28.04 years 10
1980s 26.84 years 26.75 years 26.98 years 10
1990s 27.16 years 26.98 years 27.29 years 10
2000s 27.41 years 27.29 years 27.73 years 10
2010s 28.51 years 27.87 years 29.01 years 10
2020s 29.03 years 29.02 years 29.05 years 4

Countries ranked near Guam

  1. 129 Argentina 29.07 years compare
  2. 130 Northern Mariana Islands 29.05 years compare
  3. 132 Bosnia and Herzegovina 29.04 years compare
  4. 133 Cote d'Ivoire 29.03 years compare
  5. 134 China 29.02 years compare

See the full ranking of 236 places →

More reference data data for Guam

All data for Guam →

Frequently asked questions

What is average age of mothers at childbirth in Guam?
Average age of mothers at childbirth in Guam was 29.05 years in 2023, according to Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest average age of mothers at childbirth recorded in Guam?
The highest recorded value was 29.16 years in 1950.
What is the lowest average age of mothers at childbirth recorded in Guam?
The lowest recorded value was 26.75 years in 1984.
How does Guam rank for average age of mothers at childbirth?
Guam ranks 131st out of 236 countries with data for 2023.
Is average age of mothers at childbirth rising or falling in Guam?
Over the last ten years it is up 2.7%. The long-run trend across the full record is flat.
Where does this Guam data come from?
The figures come from Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Average age of mothers at childbirth. Statizoid updates them automatically from the source API.

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Average age of mothers at childbirth in Guam. Statizoid, drawing on Human Fertility Database (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 24 September 2026, from https://reference.statizoid.com/stat/period-average-age-of-mothers/guam/

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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

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.