Koscielecki Family History

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

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