How Many People Are Named Sergio Williams?
There are approximately 430 people named Sergio Williams living in the United States today. That makes this name combination uncommon, occurring at a rate of about 1 in 797,103 Americans.
This estimate combines SSA birth records for the first name Sergio with Census Bureau frequency data for the surname Williams. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
430
1 in 797,103 Americans
Combination Rarity
Uncommon
First Name
View full profileSergio
Last Name
View full profileWilliams
Sergio: Popularity Over Time
Year-by-year SSA birth registrations for the first name Sergio. The peak year was 1995 with 2,261 births. The average person named Sergio today is 30 years old.
Ancestry of the Williams Surname
Self-reported race and ethnicity breakdown for people with the surname Williams, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Sergio" has an estimated frequency of 0.0227% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Williams" appears at a rate of 550.97 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 430 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Sergio
Other people with the surname Williams
Sergio Williams: Questions and Answers
How many people are named Sergio Williams?
We estimate approximately 430 people named Sergio Williams are alive in the United States today. The first name Sergio is shared by 77,973 Americans, and the surname Williams is shared by 1,850,671.
How rare is the name Sergio Williams?
This name combination is classified as Uncommon, occurring at a rate of about 1 in 797,103 Americans. The first name Sergio is uncommon and the surname Williams is very common.
Is Sergio a male or female name?
Sergio is predominantly male, with 99.6% of bearers being male and 0.4% female. It peaked in popularity in 1995 and the average bearer today is 30 years old.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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