Dennecki Family History

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

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