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Find more Kopplin 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 1 more person named Kopplin 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 452 people named Kopplin in the 1930 U.S. Census. In 1940, there were 0% more people named Kopplin in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 453 people named Kopplin were living in the United States. In a snapshot:

  • 26% were children
  • 26% of adults were unmarried
  • 7% were disabled

Learn where they came from and where they went.

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

  • Most mothers originated from Wisconsin
  • 212 were first-generation Americans
  • Most fathers originated from Wisconsin
  • The most common mother tongue was German