Oncheski Family History

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

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