How Common Is the Surname Diaz?
The surname Diaz is the #55 most common last name in the United States, with an estimated 395,850 bearers. That's about 1 in 849 Americans. This data comes from the 2010 U.S. Census Bureau surname frequency tables.
This page covers the Diaz surname's frequency in the U.S. population, its rank among all American surnames, and a breakdown of ancestry and ethnicity data from the Census. You can also check how many people share any first + last name combination involving Diaz.
Estimated Americans with this Surname
395,850
About 1 in 849 people in the U.S.
Census Rank
#55
Frequency Rate
117.85
per 100,000 people
Census Count
347,636
2010 Census
Data Source
2010
U.S. Census Bureau
Ancestry and Ethnicity for Diaz
The Diaz surname is most commonly associated with people who identify as Hispanic (92.56%). The next largest groups are White (5.19%) and Asian/Pacific Islander (1.19%).
Self-reported race and ethnicity from the 2010 U.S. Census Bureau surname tables. Some categories may be suppressed for privacy when sample sizes are small.
How Many People Are Named ... Diaz?
Pair the Diaz surname with a first name to estimate how many people share that full name in the United States.
Diaz Surname: Questions and Answers
How common is the last name Diaz?
Diaz is the #55 most common surname in the United States, with an estimated 395,850 people sharing this last name. It appears at a rate of 117.85 per 100,000 Americans.
What ethnicity is the surname Diaz?
The Diaz surname is most commonly associated with people who identify as Hispanic (92.56%). The next largest groups are White (5.19%) and Asian/Pacific Islander (1.19%). This data comes from the 2010 U.S. Census Bureau surname tables, which include self-reported race and ethnicity breakdowns.
How many people named [First Name] Diaz are there?
We can estimate any first + last name combination. Popular examples: Michael Diaz, James Diaz, John Diaz. Search any combination on our homepage.
Where does this surname data come from?
Surname frequency data comes from the 2010 U.S. Census Bureau decennial surname tables. These list every surname appearing in the Census along with frequency rates and demographic breakdowns. Full methodology.
Search for a full name combination
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