Guam Population Pyramid 1990
Guam in 1990
In 1990, Guam had a total population of 138,610 people. That is 25.8% more than in 1980, when the population stood at 110,141.
With a median age of 25.1 years, Guam had a youth dependency ratio of 45.7 and an old-age dependency ratio of 5.8 per 100 people of working age. The pyramid is expansive: its wide base of young cohorts reflects high fertility and a rapidly growing population.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
The fertility rate of Guam was 2.78 births per woman in 2023, above the 2.1 needed to replace each generation.
Source: World Bank World Development Indicators, latest available year.
A child born there in 2023 could expect to live 77.2 years on average (81.4 years for girls, 73.4 for boys).
Source: World Bank World Development Indicators, latest available year.
77,104 immigrants live in Guam, 46.0% of the population.
| Philippines | 32,415 |
| United States of America | 20,469 |
| Micronesia (Fed. States of) | 11,767 |
| Puerto Rico | 4,367 |
| Republic of Korea | 2,996 |
196 people born in Guam live in other countries.
| Australia | 141 |
| Micronesia (Fed. States of) | 38 |
| Mexico | 10 |
| Costa Rica | 7 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Guam | 138,610 | 25.1 | |
| Micronesia (Fed. States of) | 100,889 | 16.6 | |
| Kiribati | 74,855 | 20.2 |





