Sylvin Un
There are approximately 1 people named Sylvin Un living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Sylvin with Census Bureau frequency data for the surname Un. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Sylvin
2
Alive today
Named Un
1.1K
Alive today
US population
343M
Denominator
Estimated living: 2
Rarity: Very Rare
Gender: Male
Peak year: 1917
Average age: 76
Top Census group: White (39.8%)
Estimated bearers: 1.1K
Rarity: Rare
Census rank: #25,996
Per 100K: 0.33
Top ancestry: Asian/Pacific Islander (72.4%)
First name trend
Sylvin: popularity over time
Year-by-year SSA birth registrations for the first name Sylvin. The peak year was 1917 with 8 births. The average person named Sylvin today is 76 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Sylvin
Self-reported race and ethnicity breakdown for people with the first name Sylvin, from the 2020 US Census Bureau first-name tables. The largest published group is White at 39.8%.
The bar chart below shows how people with the first name Sylvin described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Sylvin at the time of the Census. A first name does not determine a person's race or ethnicity.
- White39.8% · 41
- Black or African American38.8% · 40
- Hispanic or Latino9.7% · 10
- Asian and Pacific Islander5.8% · 6
- American Indian and Alaska Native3.9% · 4
- Two or more races1.9% · 2
Ethnicity
Ancestry of the Un surname
Self-reported race and ethnicity breakdown for people with the surname Un, from the 2020 US Census Bureau. The largest group is Asian/Pacific Islander at 72.4%.
The bar chart below shows how people with the surname Un described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Un at the time of the Census. A surname does not determine a person's race or ethnicity.
- Asian and Pacific Islander72.4% · 717
- White14.4% · 143
- Hispanic or Latino5.5% · 55
- Two or more races4.1% · 41
- Black or African American3.2% · 32
- American Indian and Alaska Native0.3% · 3
Methodology
How we calculated this
The first name Sylvin has a living-bearer frequency of 0.0000% of the US population, based on 2 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Sylvin right now.
The surname Un appears at a rate of 0.33 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0003%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Sylvin Un. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Sylvin Un: questions and answers
How many people are named Sylvin Un?
We estimate approximately 1 people in the United States share the full name Sylvin Un. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0000%) with the surname frequency (0.33 per 100K) against the current US population.
How rare is the name Sylvin Un?
We classify Sylvin Un as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Sylvin a male or female name?
Sylvin is predominantly male. Out of 51 total SSA registrations, 100.0% were male and 0.0% were female. See the full Sylvin profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many people are named Sylvin Un?
For a quick modern take, check how common the name Sylvin Un is on our sister site HowManyOfMe.org.