Onco Family History

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

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