Joncoff Family History

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

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