Oncsek Family History

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

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