Johnkowski Family History

You can see how Johnkowski families moved over time by selecting different census years. The Johnkowski family name was found in the USA, and Canada between 1880 and 1920. The most Johnkowski families were found in USA in 1920. In 1880 there was 1 Johnkowski family living in Iowa. This was 100% of all the recorded Johnkowski's in USA. Iowa had the highest population of Johnkowski families in 1880.

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