You've got family at Ancestry.

Find more Jacobs 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 1,923 more people named Jacobs 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 60,761 people named Jacobs in the 1930 U.S. Census. In 1940, there were 3% more people named Jacobs in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 62,684 people named Jacobs were living in the United States. In a snapshot:

  • 39% owned their homes, valued on average at $3,444
  • 30% were children
  • 18,663 were children
  • 6,829 reported their race as other than white

Learn where they came from and where they went.

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

  • 12% were born in foreign countries
  • Most mothers originated from New York
  • They most commonly lived in Pennsylvania
  • 16,007 were first-generation Americans