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Find more Platt 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 152 less people named Platt 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 12,266 people named Platt in the 1930 U.S. Census. In 1940, there were 1% less person named Platt in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 12,114 people named Platt were living in the United States. In a snapshot:

  • 3,411 were children
  • 96% rented out rooms to boarders
  • 51%, or 1,643 people, lived in homes they rented
  • 5% were disabled

Learn where they came from and where they went.

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

  • They most commonly lived in Pennsylvania
  • 1,994 migrated within the United States from 1935 to 1940
  • 1,148 were born in foreign countries
  • The most common mother tongue was Polish