Janecowski Family History

You can see how Janecowski families moved over time by selecting different census years. The Janecowski family name was found in the USA in 1880. In 1880 there were 6 Janecowski families living in Wisconsin. This was 100% of all the recorded Janecowski's in USA. Wisconsin had the highest population of Janecowski families in 1880.

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