You've got family at Ancestry.

Find more Demps 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 71 more people named Demps 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 414 people named Demps in the 1930 U.S. Census. In 1940, there were 17% more people named Demps in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 485 people named Demps were living in the United States. In a snapshot:

  • 60 women had paying jobs
  • They typically took 13 weeks of vacation a year
  • 80% reported their race as other than white
  • The average annual income was $465

Learn where they came from and where they went.

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

  • 13% migrated within the United States from 1935 to 1940
  • Most immigrants originated from Poland
  • 41 were first-generation Americans
  • 1% were born in foreign countries