Koichiro Family History

You can see how Koichiro families moved over time by selecting different census years. The Koichiro family name was found in the USA in 1920. In 1920 there were 3 Koichiro families living in California. This was 100% of all the recorded Koichiro's in USA. California had the highest population of Koichiro families in 1920.

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