Riardan Family History

You can see how Riardan families moved over time by selecting different census years. The Riardan family name was found in the USA, and the UK between 1880 and 1920. The most Riardan families were found in USA in 1880. In 1880 there were 7 Riardan families living in Illinois. This was about 44% of all the recorded Riardan's in USA. Illinois had the highest population of Riardan families in 1880.

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