How Many People Are Named Ilona Williams?
There are approximately 13 people named Ilona Williams living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 26,365,718 Americans.
This estimate combines SSA birth records for the first name Ilona 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
13
1 in 26,365,718 Americans
Combination Rarity
Rare
First Name
View full profileIlona
Last Name
View full profileWilliams
Ilona: Popularity Over Time
Year-by-year SSA birth registrations for the first name Ilona. The peak year was 1946 with 102 births. The average person named Ilona today is 48 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 "Ilona" has an estimated frequency of < 0.0001% 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 13 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Ilona
Other people with the surname Williams
Ilona Williams: Questions and Answers
How many people are named Ilona Williams?
We estimate approximately 13 people named Ilona Williams are alive in the United States today. The first name Ilona is shared by 2,321 Americans, and the surname Williams is shared by 1,850,671.
How rare is the name Ilona Williams?
This name combination is classified as Rare, occurring at a rate of about 1 in 26,365,718 Americans. The first name Ilona is rare and the surname Williams is very common.
Is Ilona a male or female name?
Ilona is predominantly female, with 0.0% of bearers being male and 100.0% female. It peaked in popularity in 1946 and the average bearer today is 48 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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