Grontkowski Family History

You can see how Grontkowski families moved over time by selecting different census years. The Grontkowski family name was found in the USA in 1920. In 1920 there were 3 Grontkowski families living in Pennsylvania. This was about 25% of all the recorded Grontkowski's in USA. Pennsylvania and 1 other state had the highest population of Grontkowski families in 1920.

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