Dennelio Family History

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

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