Ondrosek Family History

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

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