State population projections are controlled to the national total age is controlled to the state total population and sex is controlled to each age-group. Detailed national characteristics are equal to the sum of the projections for each of the 50 states and D.C. We use the Hamilton-Perry approach, which is a reduced form of the cohort-component method. The projections include total population, by five-year age groups, and by gender State and National Projections Methodologyīelow are the steps we followed when developing projections for the nation, the 50 states, and the District of Columbia for 2020, 2030, and 2040. The excel document contains several worksheets please click on the tabs at the bottom of the document to view the 2020, 2030, and 2040 projections as well as percent population 65+ and median age. The following Excel files contain aggregate population data for each state and the nation. Retrieved from National Population Projections Data The Center’s 2018 projections for 2020 are highly accurate compared to the 2020 actual Census count, and the Census Bureau frequently refers data inquiries to the Cooper Center website.Ĭitation: University of Virginia Weldon Cooper Center. Census Bureau, detail changes between 20 in overall population and in subgroups by age and sex.Ĭooper Center projections have an outstanding reputation and are widely used by many states and federal agencies, including the Congressional Budget Office. The projections, which were produced using the most recent population estimates and census data from the U.S. These population projections for the nation overall, and for all 50 states (and the District of Columbia), were produced and released by the Cooper Center in December 2018. Use this map to explore the estimated global population density (people per square kilometer) in 2020.A new round of national and 50-state population projections for 2030-2050, benchmarked on the 2020 Census, will be available by Summer 2024. This means urban areas could appear to have fewer people than they really do, while rural areas would seem to have more. All of these areas have a vastly different population density, but they are averaged together. Whereas at a larger scale, such as the state, region, or province level, population density could vary widely as it includes a mix of urban, suburban, and rural places. Population density is most effective in small- scale places-cities or neighborhoods-where people are evenly distributed. While a useful tool for decision and policymakers, it is important to understand the limitations of population density. Infectious disease scientists use these maps to understand the spread of infectious disease, a topic that has become critical after the COVID-19 global pandemic. Experts can use this information to inform decisions around resource allocation, natural disaster relief, and new infrastructure projects. Understanding and mapping population density is important. Population density is the average number of people per unit, usually miles or kilometers, of land area. This has resulted in an increase in population density for these cities, which are now forced to expand in order to accommodate the growing population. Job opportunities in large cities have caused an influx of people to these already packed locations. In the last century, the global population has increased by billions of people.
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