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Find more Koeppen 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 25 less people named Koeppen 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 695 people named Koeppen in the 1930 U.S. Census. In 1940, there were 4% less people named Koeppen in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 670 people named Koeppen were living in the United States. In a snapshot:

  • Most common occupation was carpenter
  • They typically took 8 weeks of vacation a year
  • 25% were children
  • The youngest was less than a year and the oldest was 93

Learn where they came from and where they went.

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

  • They most commonly lived in Wisconsin
  • Most immigrants originated from Germany
  • Most mothers originated from Wisconsin
  • 296 were first-generation Americans