How Many People Have the Last Name Riordan?
people had the surname Riordan in the 2010 US Census
About 1 in 37,594 people in the Census had this surname
Source: Census Bureau surname list
Surname Rank
Tied with 1 other
Per 100,000 People
In 2010
Largest Group
White
Change Since 2000
+454 people
👥 Race and Hispanic Origin
Most people with the surname Riordan (94.8%) are non-Hispanic White. Among surnames where most people are non-Hispanic White, Riordan ranks #3,421. The mix barely changed from 2000: no group's share moved by 2 points or more.
📈 Change Since 2000
Riordan grew from 7,394 people in 2000 to 7,848 in 2010 (up 6.1%), and its rank fell from #4,433 to #4,515. The population grew faster, so its share still fell, from 2.74 to 2.66 people per 100,000.
| 2000 | 2010 | |
|---|---|---|
| People | 7,394 | 7,848 |
| Rank | #4,433 | #4,515 |
| Per 100,000 people | 2.74 | 2.66 |
🏆 Surnames Ranked Near Riordan
👤 Riordan as a First Name
Riordan is a first name too: about 293 people alive in the US today have it as a first name, an estimate from Social Security birth records.
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