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Find more Koska 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 49 less people named Koska 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 377 people named Koska in the 1930 U.S. Census. In 1940, there were 13% less people named Koska in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 328 people named Koska were living in the United States. In a snapshot:

  • For 159 females, Anna was the most common name
  • 2 reported their race as other than white
  • The typical household was 3 people

Learn where they came from and where they went.

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

  • 167 were first-generation Americans
  • 44% were first-generation Americans
  • Most fathers originated from Germany
  • 8% migrated within the United States from 1935 to 1940