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Population estimates cannot be considered accurate to more than two decimal digits; for example, the world population for the year 2012 was estimated at 7.02, 7.06, and 7.08 billion by the United States Census Bureau, the Population Reference Bureau, and the United Nations Department of Economic and Social Affairs, respectively, corresponding ...
United States birth rate (births per 1000 population). [26] The United States Census Bureau defines the demographic birth boom as between 1946 and 1964 [27] (red). In the years after WWII, the United States, as well as a number of other industrialized countries, experienced an unexpected sudden birth rate jump.
The national 1 July, mid-year population estimates (usually based on past national censuses) supplied in these tables are given in thousands. The retrospective figures use the present-day names and world political division: for example, the table gives data for each of the 15 republics of the former Soviet Union, as if they had already been independent in 1950.
The U.S. population grew only 0.1% from the previous year before. [88] The United States' population has grown by less than one million people for the first time since 1937, with the lowest numeric growth since at least 1900, when the Census Bureau began yearly population estimates. [88]
Historical demography is the quantitative study of human population in the past. It is concerned with population size, with the three basic components of population change ( fertility , mortality , and migration ), and with population characteristics related to those components, such as marriage, socioeconomic status , and the configuration of ...
This is a list of countries showing past and future population density, ranging from 1950 to 2300, as estimated by the 2017 revision of the World Population Prospects database by the United Nations Population Division. The population density equals the number of human inhabitants per square kilometer of land area.
1950 was a watershed year for many cities in the United States. Many cities in the country peaked in population, but started a slow decline caused by suburbanization associated with pollution, congestion, and increased crime rates in inner cities, while the improved infrastructure of the Eisenhower Interstate System more easily facilitated car ...
As the United States has grown in area and population, new states have been formed out of U.S. territories or the division of existing states. The population figures provided here reflect modern state boundaries. Shaded areas of the tables indicate census years when a territory or the part of another state had not yet been admitted as a new state.
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related to: us historical population by year map of countries by size