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Statistics in Schools is a free Census Bureau program that uses the data to create resources for K-12 students in a variety of subjects.
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Activities Overview Math History/Social Studies Geography Sociology English Home and Distance Learning Activities Grades K - 2 Grades 3 - 5 Grades 6 - 8 Grades 9 - 12
Apportionment Resources Constitution Day Data Access Tools Fun Facts Games Historical Documents and Images Kahoot! Games Learn About the Decennial Census Maps Monthly Highlights Videos Visualizations Warm-Up Activities
Overview Math History Geography Sociology English
About Us Program Benefits Census 101 for Students Teacher's Guide to Tools Newsroom Partner with SIS Contact Us

Before and After 1940: Change in Population Density

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Within Statistics in Schools (SIS) Resources

Before and After 1940: Change in Population Density

H018.Figure1

This interactive data visualization includes three maps. The maps illustrate the increase and decrease in population density in the United States over three decades: 1920-1930, 1930-1940, and 1940-1950.  The legends on each map represent the change in population density for counties (people per square mile). Taken together, the three population density maps illustrate the changes in geographic mobility during the featured decades.

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web Before and After 1940: Changes in Population Density
Page Last Revised - December 7, 2023
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