Annual population growth rate (%)

Indicator name
(English / Spanish)
Annual population growth rate (%)
Tasa anual de crecimiento poblacional (%)
Indicator ID Pop_Growth_Rate_Per_100
Domain Sociodemographic
Subdomain Demographic
Definition

Average annual rate of change in the size of the resident population in a given country, territory or geographic area, for a given period. It expresses the quotient between the annual increase in population size and the average population for the same period.

The annual increase in population size is defined as the sum of differences: the difference between births minus deaths and the difference between immigrants and emigrants, in a given country, territory or geographic area for a given year.

Average population: it is assumed that the reference period is year z and that the births that occur are distributed evenly throughout that period, the average population will be represented by a mid-year estimated, that is as of July 1.

Unit Percent
Measure Rate
Type of statistics Corrected/Predicted
Purpose

This indicator reflects the growth rate of a country or geographic area and is influenced by variations in birth rates, mortality, and migration.

It is used to analyze the temporal and geographical variations in the growth of a population.

Its result has direct application in the planning and evaluation of health policies and other specific public policies, such as territorial planning and resource allocation.

Method of estimation

The annual population growth rate is generally based on either an intercensal population growth rate, calculated from two censuses adjusted by census omission or on the components of population growth, that is, births, deaths, immigration, and emigration, adjusted by under-registration if necessary, during a specific period.

For countries with a population greater than 90 thousand inhabitants, the figures are estimates from the United Nations, based on data that represent values estimated as of July 1st, obtained by linear interpolation of the corresponding five-year population projections of the United Nations, using the medium-variant projections.

For countries with a population greater than 90 thousand inhabitants, the figures are estimates from the United Nations, based on data that represent values estimated as of July 1st, obtained by linear interpolation of the corresponding five-year population projections of the United Nations, using the medium-variant projections.

Interpretation example

During 2018, the annual population growth rate of country A was 1.2%, that is, during that year, this country increased its population size by 1.2 people per 100 inhabitants.

Disaggregation  
Limitations

The international comparability of this indicator may be affected by the periodicity of population censuses and demographic surveys. Population censuses are generally carried out every 10 years and surveys have a frequency that varies between different countries, and the sampling error also influences quality. The value of the indicator also depends on the adequate coverage of the civil registration system (greater than 90%), on the fact that deaths and births are registered in the information system in a timely manner, and on the integrity of the national registry.

Since the calculation of the annual population growth rate is based on population estimates, its result depends on the method used to produce population estimates and projections and data may differ from national produced statistics.

The use of the rate in population projections for years distant from the last population census may not reflect the recent population dynamics. This effect tends to be greater in small populations.

Data source

For countries with a population greater than 90 thousand inhabitants:
United Nations, Department of Economic and Social Affairs, Population Division. World Population Prospects. Available in:United Nations, Department of Economic and Social Affairs, Population Division. World Population Prospects. Available from: https://population.un.org/wpp/

For countries with a population of less than 90 thousand inhabitants:
Census Bureau of the United States of America. International database. Available from: https://www.census.gov/programs-surveys/international-programs/about/idb.html

PAHO update periodicity Annual
Link to SDG

n/a

References
PAHO Contact Andrea Gerger, gergeran@paho.org
Update date August 13, 2021