The U.S. Census Bureau has released intercensal population estimates for the years 2010 to 2020, providing revised demographic data for the decade between the last two decennial censuses. These estimates are produced every ten years following a census and adjust previous annual figures to align with the most recent official counts.
The new data set includes population estimates by age, sex, race, and Hispanic origin for the United States at national, state, and county levels. For Puerto Rico and its municipios, information is available by age and sex.
The intercensal series covers three key reference points: the April 1, 2010 base; annual estimates from July 1, 2010 through July 1, 2019; and the April 1, 2020 census count. This consistent time series allows researchers and policymakers to analyze trends in population changes over time or use these numbers as denominators when calculating birth rates, death rates, or other demographic measures.
According to the Census Bureau: “A consistent time series of population estimates that reflects (or benchmarks to) the 2010 Census and 2020 Census counts is important for any study of the population over time. The intercensal estimates can be used to track trends in population changes or as denominators for calculating birth and death rates and other population characteristics.”
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