Koztowski Family History

You can see how Koztowski families moved over time by selecting different census years. The Koztowski family name was found in the USA in 1920. In 1920 there were 5 Koztowski families living in Illinois. This was about 36% of all the recorded Koztowski's in USA. Illinois had the highest population of Koztowski families in 1920.

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