Sergei Gonchar
There are approximately 1 people named Sergei Gonchar 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 Sergei with Census Bureau frequency data for the surname Gonchar. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Sergei
339
Alive today
Named Gonchar
274
Alive today
US population
343M
Denominator
Estimated living: 339
Rarity: Very Rare
Gender: Male
Peak year: 1998
Average age: 34
Estimated bearers: 274
Rarity: Very Rare
Census rank: #78,567
Per 100K: 0.08
Top ancestry: White (95.9%)
First name trend
Sergei: popularity over time
Year-by-year SSA birth registrations for the first name Sergei. The peak year was 1998 with 16 births. The average person named Sergei today is 34 years old.
Babies born per year
Ethnicity
Ancestry of the Gonchar surname
Self-reported race and ethnicity breakdown for people with the surname Gonchar, from the 2010 US Census Bureau. The largest group is White at 95.9%.
- White95.9%
- Hispanic or Latino2.5%
- Unknown or suppressed1.7%
Methodology
How we calculated this
The first name Sergei has a living-bearer frequency of 0.0001% of the US population, based on 339 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Gonchar appears at a rate of 0.08 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0001%.
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 Sergei Gonchar. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Sergei
FAQ
Sergei Gonchar: questions and answers
How many people are named Sergei Gonchar?
We estimate approximately 1 people in the United States share the full name Sergei Gonchar. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0001%) with the surname frequency (0.08 per 100K) against the current US population.
How rare is the name Sergei Gonchar?
We classify Sergei Gonchar as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Sergei a male or female name?
Sergei is predominantly male. Out of 371 total SSA registrations, 100.0% were male and 0.0% were female. See the full Sergei 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.