3 Unique, Key Facts about Every U.S. Federal Census

Download this free diagram of U.S. census changes from 1790 to 1940.

Here's an infographic to show you the states or territories included in each U.S. Federal census, 1790–1940. Knowing these facts can save you from trying to find your ancestor in a state that didn't yet exist.

After the first census box for 1790, each year in the infographic shows:

• The new states and territories counted that year.
• New questions asked and facts recorded that year.

It's interesting to see the increasing detail gathered from census to census.

You can download this graphic as a PDF. I've also created a printer-friendly version in black and white for letter-size paper (8½" x 11").

Diagram of U.S. Census Changes from 1790 to 1940

And speaking of the census:

• How To Squeeze Everything Out of the Census
• Finding a Missing Person in Someone Else's Household
• Simplify Your Genealogy Info Gathering With This Form