You've got family at Ancestry.

Find more Supek 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 18 more people named Supek in the United States — and some of them are likely related to you.

Start a tree and connect with your family.


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 17 people named Supek in the 1930 U.S. Census. In 1940, there were 106% more people named Supek in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 35 people named Supek were living in the United States. In a snapshot:

  • 33 rented out rooms to boarders
  • Most common occupation was stator winder
  • 15 adults were unmarried
  • 1 was disabled

Learn where they came from and where they went.

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

  • 1 migrated within the United States from 1935 to 1940
  • They most commonly lived in Illinois
  • The most common mother tongue was Polish
  • Most immigrants originated from Slovakia