Sienkowic Family History

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

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