With the release of the 1940 Census records, we can now look back and see how states have changed over time.

Take a look at how the Census has changed over time…and how we’ve taken our snapshots of America.

72 years after the 1940 Census we look back and see just how much America changed.

This 1940-2010 State by State: Key Comparison Between the Years visualization is on the Decennial Census.

This 1940-2010: How Has America Changed? visualization is on the Decennial Census.

This County Population Change: 1930 to 1940 visualization is from the Decennial Census.

1940-2010 Data Collection comparisons in this Snapshot In Time.