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Jul 26, 2019 · Over time, residential areas have shifted from downtown outward, households are smaller (but more numerous), and the introduction of Metro has changed the transportation geography significantly. The Washington region has seen significant changes in population and density as well.
Aug 18, 2021 · Population density by census tract in the DC metro area, according to 2020 Census results. Last Thursday, the Census Bureau released the redistricting data from the 2020 census, giving the public its first look at the results for geographic areas smaller than states.
Jul 24, 2019 · The shape of the 1970 population distribution in the region helps explain why Metro lines in Montgomery and Fairfax Counties extend well beyond the Beltway, while those in Prince George’s County do not.
Feb 13, 2017 · In order to put Washington’s density in perspective, we put together a series of visualizations showing how large D.C. would be if it were as dense as other cities. If D.C.’s population lived as close together as New York’s does, how much space would they take up?
- Choosing A Study Region
- Mapping Population Distribution by Race
- Analyzing Changes in Racial Population Distribution
- List of Data Sources
Choosing the region to be analyzed for this project was somewhat difficult. A naive solution would be to use the Census’s current definition of the Washington-Arlington-Alexandria Metropolitan Statistical Area. However, this is not a viable option due to the constraints of available data and of the asymmetrically-shaped MSA.
The first step toward understanding how the DC metro area’s population distribution of different races had changed during the study period was to map the distribution of residents of different races. Since the US Census has been inconsistent in how it reports data on race and ethnicity (Latinx / non-Latinx status) over the study period, I developed...
A visual analysis of population dot maps can only tell us so much about the distributions of different populations, and risks introduction of bias due to biases in human visual perception. To supplement this analysis, I also performed a relatively simple mathematical analysis of the population data, determining the movement of the centers-of-popula...
Population data and shapefiles for the 1970-2010 Decennial Censuses were obtained from the IPUMS National Historical Geographic Information System at the University of Minnesota.Population data for the 2016 American Community Survey was taken from the US Census’s American Fact Finder.The 2010 Census tract shapefiles and water and road network shapefiles were taken from the US Census’s Tiger/Line shapefile repository.The WMATA Metrorail lines and stations shapefiles are from the Maryland iMAP data portal.This report provides additional detailed information for jurisdictions in the District of Columbia, Maryland, Virginia, and West Virginia. The total population of the District of Columbia increased by more than 87,000 (14.6 percent) between 2010 and 2020.
Storm Team4 Meteorologist (and Science Teacher!) Ryan Miller introduces demography, the science of human populations, and looks at how many people live in our area.
