Demffsey Family History

You can see how Demffsey families moved over time by selecting different census years. The Demffsey family name was found in the USA in 1920. In 1920 there was 1 Demffsey family living in Iowa. This was 100% of all the recorded Demffsey's in USA. Iowa had the highest population of Demffsey families in 1920.

Use census records and voter lists to see where families with the Demffsey surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.