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Find more Karol 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 53 more people named Karol 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 410 people named Karol in the 1930 U.S. Census. In 1940, there were 13% more people named Karol in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 463 people named Karol were living in the United States. In a snapshot:

  • 440 rented out rooms to boarders
  • 128 were children
  • For 228 females, Anna was the most common name
  • 36% of adults were unmarried

Learn where they came from and where they went.

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

  • 38 migrated within the United States from 1935 to 1940
  • They most commonly lived in New Jersey
  • 54% were first-generation Americans
  • Most fathers originated from Czechoslovakia