Ontco Family History

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

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