Gronczewski Family History

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

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