Riordar Family History

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

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