Denncio Family History

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

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