An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
A locked padlock
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Population change is the rate of change in population between decennial census years. While every census region grew considerably during the twentieth century, the South and West experienced the largest increases in population.