How Common Is the Surname Alonso?
The surname Alonso is the #1,155 most common last name in the United States, with an estimated 34,597 bearers. That's about 1 in 9,709 Americans. This data comes from the 2010 U.S. Census Bureau surname frequency tables.
This page covers the Alonso 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 Alonso.
Estimated Americans with this Surname
34,597
About 1 in 9,709 people in the U.S.
Census Rank
#1,155
Frequency Rate
10.30
per 100,000 people
Census Count
30,389
2010 Census
Data Source
2010
U.S. Census Bureau
Ancestry and Ethnicity for Alonso
The Alonso surname is most commonly associated with people who identify as Hispanic (91.90%). The next largest groups are White (6.76%) and Asian/Pacific Islander (0.84%).
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 ... Alonso?
Pair the Alonso surname with a first name to estimate how many people share that full name in the United States.
Alonso Surname: Questions and Answers
How common is the last name Alonso?
Alonso is the #1,155 most common surname in the United States, with an estimated 34,597 people sharing this last name. It appears at a rate of 10.30 per 100,000 Americans.
What ethnicity is the surname Alonso?
The Alonso surname is most commonly associated with people who identify as Hispanic (91.90%). The next largest groups are White (6.76%) and Asian/Pacific Islander (0.84%). 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] Alonso are there?
We can estimate any first + last name combination. Popular examples: Michael Alonso, James Alonso, John Alonso. 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
How Many of Me