Roncykowski Family History

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

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