Population under 18 has fallen by 36% over the decade

Announcements
IEPR
24 December 2025

PRESS RELEASE

RED STATE DATA CENTER OF PUERTO RICO (SDC‐PR)

Population under 18 has fallen by 36% over the decade

According to new estimates of the population by age and sex 2010-2019

San Juan, PR, June 25, 2020 — The U.S. Census Bureau today released the most recent Annual Population Estimates by age and sex characteristics for municipalities, Puerto Rico and counties in the United States. These statistics refer to July 1, 2019 and include population estimates by age group for each municipality.

On behalf of the State Data Center Network of the U.S. Census Bureau in Puerto Rico, the Puerto Rico Statistics Institute (Institute) reported several findings from the new publication of population estimates for 2019 compared to those of July 1, 2010:

  1. From 2010 to 2019, the population under 18 years of age in Puerto Rico reflected a reduction of 324,293 residents, representing a percentage change of ‐ 36%. As of July 1, 2010, this population was 897,024, nine years later in 2019 it is estimated at 572,731.
  2. In terms of the proportion of large age groups in the population, those under 18 used to represent 24% (2010) in Puerto Rico, now they comprise 18% (2019).
  3. The population structure by age and sex (pyramid) of 2010 compared to that of 2019 shows how the composition has changed rapidly in Puerto Rico. Its base is much narrower, indicating a decline in infants, children and adolescents.
  4. On the other hand, the top of the pyramid reflects a significant increase in age groups aged 65 and over, which translates into an older population.
  5. Puerto Rico's median age is estimated to have increased about six years over the decade, from 37.0 years in 2010 to 43.2 years in 2019.

“The estimates by demographic characteristics of age and sex allow us to detail the population trend in Puerto Rico. For example, the drastic decline in births has a direct influence and is reflected at the base of the population pyramid. As of 2010, the population in age groups between 0-4 and 5-9 years comprised about 3% of women and men, respectively. In 2019, the base shrank with percentages close to or below 2%,” said Alberto L. Velázquez-Estrada, Manager of Statistical Projects at the Institute.

The 2019 annual population estimates for Puerto Rico and its municipalities can be accessed on the census data and information page on Puerto Rico of the SDC‐PR network at: https://censo.estadisticas.pr/EstimadosPoblacionales, and more details on the annual estimates at: census.gov/programs‐surveys/popest.html.

The Institute is an autonomous governmental entity tasked with coordinating the Government's statistical production service to ensure that the systems for collecting data and statistics, on which public policies are based, are complete, reliable and accessible quickly and universally. In addition, as the leading entity of the SDC in Puerto Rico, the Institute manages the SDC portal, which contains the main statistical reports and publications of the U.S. Census Bureau on Puerto Rico, specifically those that are most in demand, such as annual population estimates; the Puerto Rico Community Survey (Puerto Rico Community Survey) and official statistics on Puerto Rico's 10-year population and housing censuses, among others. The Puerto Rico SDC portal can be accessed at: https://censo.estadisticas.pr/.

For more information you can visit the website: www.estadisticas.pr. In addition, you can follow the Institute on social networks through Facebook (@estadisticas .pr), Twitter (@EstadisticasPR) and LinkedIn (Institute of Statistics of Puerto Rico) accounts.

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Press Contact:

Idia Martínez

787‐603‐3200

imartinez@upfrontpr.net

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