Onchanko Family History

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

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