![]() 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 conducting and analyzing a full census. Estimates for the years before and after the census are interpolations or extrapolations based on demographic models. Source: Food and Agriculture Organization and World Bank population estimates.ĭevelopment Relevance: Population estimates are usually based on national population censuses. In most cases the definition of inland water bodies includes major rivers and lakes. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship-except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. As the graph below shows, over the past 59 years this indicator reached a maximum value of 36.24 in 2020 and a minimum value of 20.06 in 1961.ĭefinition: Population density is midyear population divided by land area in square kilometers. km of land area) in United States was 36.24 as of 2020. The value for Population density (people per sq. United States - Population density (people per sq.
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