Koskoi Family History

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

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