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Find more Colby 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 1,493 less people named Colby 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 7,051 people named Colby in the 1930 U.S. Census. In 1940, there were 21% less people named Colby in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 5,558 people named Colby were living in the United States. In a snapshot:

  • The youngest was less than a year and the oldest was 96
  • 245 were disabled
  • 5,306 rented out rooms to boarders
  • 1,456 were children

Learn where they came from and where they went.

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

  • 1,185 were first-generation Americans
  • The most common mother tongue was Finnish
  • Most immigrants originated from Canada
  • They most commonly lived in New Hampshire