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Find more Katz relatives and grow your tree by exploring billions of historical records. Taken every decade since 1790, the U.S. Federal Census can tell you a lot about your family. For example, from 1930 to 1940 there were 111 less people named Katz in the United States — and some of them are likely related to you.

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Create, build, and explore your family tree.

What if you had a window into the history of your family? With historical records, you do. From home life to career, records help bring your relatives' experiences into focus. There were 22,079 people named Katz in the 1930 U.S. Census. In 1940, there were 0% more people named Katz in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 21,968 people named Katz were living in the United States. In a snapshot:

  • 48 reported their race as other than white
  • 21% of women had paying jobs
  • 4% were disabled
  • For 10,949 females, Rose was the most common name

Learn where they came from and where they went.

As Katz families continued to grow, they left more tracks on the map:

  • 10,340 were first-generation Americans
  • 10% migrated within the United States from 1935 to 1940
  • The most common mother tongue was Yiddish
  • 47% were first-generation Americans