Riordan Last Name Popularity, Meaning and Origin
In this article we'll look at the origin and meaning of the surname Riordan and how popular it is in the United States. We'll also look at the race and ethnic origin of people in the United States who are named Riordan.
Riordan, like all of the names we have data for, is identified by the U.S. Census Bureau as a surname which has more than 100 occurrences in the United States in the Decennial Census survey. The most recent statistics we have for the Riordan surname is from the 2010 census data.
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Where Does Riordan Rank in the Most Common U.S. Names?
According to the data, Riordan is ranked #4,515 in terms of the most common surnames in America.
The Riordan surname appeared 7,848 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 2.66 would have the surname Riordan.
We can also compare 2010 data for Riordan to data from the previous census in 2000. The table below contains all of the statistics for both years in a side-by-side comparison.
|Proportion per 100k||2.66||2.74||-2.96%|
Race and Ethnic Origin of People with the Last Name Riordan
We also have some data on the ancestry of people with the surname Riordan.
The below race categories are the modified race categories used in the Census Bureau's population estimates program. All people were categorized into six mutually exclusive racial and Hispanic origin groups: "White only", "Black only", "American Indian and Alaskan Native only", "Asian and Pacific Islander only", "Two or More Races", and "Hispanic".
For the most recent 2010 census data, the race/ethnic origin breakdown for Riordan was:
- 94.78%, or 7,438 total occurrences, were "Non-Hispanic White Only".
- 0.68%, or 53 total occurrences, were "Non-Hispanic Black Only".
- 0.94%, or 74 total occurrences, were "Non-Hispanic Asian and Pacific Islander Only".
- 0.20%, or 16 total occurrences, were "Non-Hispanic American Indian and Alaskan Native".
- 1.33%, or 104 total occurrences, were "Non-Hispanic of Two or More Races".
- 2.08%, or 163 total occurrences, were "Hispanic Origin".
Note: Any fields showing (S) means the data was suppressed for privacy so that the data does not in any way identify any specific individuals.
Since we have data from the previous census in 2000, we can also compare the values to see how the popularity of Riordan has changed in the 10 years between the two census surveys.
|Asian and Pacific Islander||0.94%||0.54%||54.05%|
|American Indian and Alaskan Native||0.20%||0.22%||-9.52%|
|Two or More Races||1.33%||1.33%||0.00%|
All of the data on this page is sourced from the Decennial Census survey, from the United States Census Bureau.
Link To or Reference This Page
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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!
"Riordan Last Name Popularity, Meaning and Origin". NameCensus.com. Accessed on September 23, 2023. https://namecensus.com/last-names/riordan-surname-popularity/.
"Riordan Last Name Popularity, Meaning and Origin". NameCensus.com, https://namecensus.com/last-names/riordan-surname-popularity/. Accessed 23 September, 2023
Riordan Last Name Popularity, Meaning and Origin. NameCensus.com. Retrieved from https://namecensus.com/last-names/riordan-surname-popularity/.