Riordans Family History

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

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