Onsoski Family History

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

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