Dennech Family History

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

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