Koichi Family History

You can see how Koichi families moved over time by selecting different census years. The Koichi family name was found in the USA in 1920. In 1920 there were 3 Koichi families living in California. This was about 60% of all the recorded Koichi's in USA. California had the highest population of Koichi families in 1920.

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