Koslasky Family History

You can see how Koslasky families moved over time by selecting different census years. The Koslasky family name was found in the USA in 1920. In 1920 there was 1 Koslasky family living in New York. This was about 50% of all the recorded Koslasky's in USA. New York and 1 other state had the highest population of Koslasky families in 1920.

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