Joncski Family History

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

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