OECD members - Population, total

The value for Population, total in OECD members was 1,372,684,000 as of 2020. As the graph below shows, over the past 60 years this indicator reached a maximum value of 1,372,684,000 in 2020 and a minimum value of 809,413,200 in 1960.

Definition: Total population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship. The values shown are midyear estimates.

Source: (1) United Nations Population Division. World Population Prospects: 2019 Revision. (2) Census reports and other statistical publications from national statistical offices, (3) Eurostat: Demographic Statistics, (4) United Nations Statistical Division. Popu

See also:

Year Value
1960 809,413,200
1961 820,690,400
1962 832,204,100
1963 843,700,000
1964 855,187,500
1965 866,357,900
1966 877,034,900
1967 887,433,300
1968 897,619,500
1969 907,848,300
1970 917,970,800
1971 929,959,400
1972 940,747,300
1973 951,245,200
1974 961,564,500
1975 971,664,200
1976 981,155,100
1977 990,517,800
1978 999,924,400
1979 1,009,489,000
1980 1,018,954,000
1981 1,028,315,000
1982 1,037,310,000
1983 1,045,955,000
1984 1,054,257,000
1985 1,062,613,000
1986 1,071,150,000
1987 1,079,711,000
1988 1,088,387,000
1989 1,097,531,000
1990 1,107,197,000
1991 1,117,821,000
1992 1,128,350,000
1993 1,138,363,000
1994 1,147,748,000
1995 1,156,880,000
1996 1,165,881,000
1997 1,174,866,000
1998 1,183,547,000
1999 1,192,267,000
2000 1,200,836,000
2001 1,209,788,000
2002 1,218,856,000
2003 1,227,854,000
2004 1,236,872,000
2005 1,245,821,000
2006 1,255,134,000
2007 1,264,615,000
2008 1,274,523,000
2009 1,283,635,000
2010 1,292,111,000
2011 1,298,723,000
2012 1,306,808,000
2013 1,315,224,000
2014 1,324,035,000
2015 1,332,787,000
2016 1,341,702,000
2017 1,350,048,000
2018 1,357,998,000
2019 1,364,907,000
2020 1,372,684,000

Development Relevance: Increases in human population, whether as a result of immigration or more births than deaths, can impact natural resources and social infrastructure. This can place pressure on a country's sustainability. A significant growth in population will negatively impact the availability of land for agricultural production, and will aggravate demand for food, energy, water, social services, and infrastructure. On the other hand, decreasing population size - a result of fewer births than deaths, and people moving out of a country - can impact a government's commitment to maintain services and infrastructure.

Limitations and Exceptions: Current population estimates for developing countries that lack (i) reliable recent census data, and (ii) pre- and post-census estimates for countries with census data, are provided by the United Nations Population Division and other agencies. The cohort component method - a standard method for estimating and projecting population - requires fertility, mortality, and net migration data, often collected from sample surveys, which can be small or limited in coverage. Population estimates are from demographic modeling and so are susceptible to biases and errors from shortcomings in both the model and the data. In the UN estimates the five-year age group is the cohort unit and five-year period data are used; therefore interpolations to obtain annual data or single age structure may not reflect actual events or age composition. Because future trends cannot be known with certainty, population projections have a wide range of uncertainty.

Statistical Concept and Methodology: Population estimates are usually based on national population censuses. Estimates for the years before and after the census are interpolations or extrapolations based on demographic models. Errors and undercounting occur even in high-income countries. In developing countries errors may be substantial because of limits in the transport, communications, and other resources required to conduct and analyze a full census. The quality and reliability of official demographic data are also affected by public trust in the government, government commitment to full and accurate enumeration, confidentiality and protection against misuse of census data, and census agencies' independence from political influence. Moreover, comparability of population indicators is limited by differences in the concepts, definitions, collection procedures, and estimation methods used by national statistical agencies and other organizations that collect the data. The currentness of a census and the availability of complementary data from surveys or registration systems are objective ways to judge demographic data quality. Some European countries' registration systems offer complete information on population in the absence of a census. The United Nations Statistics Division monitors the completeness of vital registration systems. Some developing countries have made progress over the last 60 years, but others still have deficiencies in civil registration systems. International migration is the only other factor besides birth and death rates that directly determines a country's population growth. Estimating migration is difficult. At any time many people are located outside their home country as tourists, workers, or refugees or for other reasons. Standards for the duration and purpose of international moves that qualify as migration vary, and estimates require information on flows into and out of countries that is difficult to collect. Population projections, starting from a base year are projected forward using assumptions of mortality, fertility, and migration by age and sex through 2050, based on the UN Population Division's World Population Prospects database medium variant.

Aggregation method: Sum

Periodicity: Annual

General Comments: Relevance to gender indicator: disaggregating the population composition by gender will help a country in projecting its demand for social services on a gender basis.

Classification

Topic: Health Indicators

Sub-Topic: Population