Sebastian Janikowski
There are approximately 1 people named Sebastian Janikowski 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 Sebastian with Census Bureau frequency data for the surname Janikowski. 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 Sebastian
204K
Alive today
Named Janikowski
524
Alive today
US population
343M
Denominator
Estimated living: 204K
Rarity: Common
Gender: Male
Peak year: 2016
Average age: 15
Top Census group: Hispanic or Latino (64.8%)
Estimated bearers: 524
Rarity: Very Rare
Census rank: #49,659
Per 100K: 0.15
Top ancestry: White (96.3%)
First name trend
Sebastian: popularity over time
Year-by-year SSA birth registrations for the first name Sebastian. The peak year was 2016 with 10,324 births. The average person named Sebastian today is 15 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Sebastian
Self-reported race and ethnicity breakdown for people with the first name Sebastian, from the 2020 US Census Bureau first-name tables. The largest published group is Hispanic or Latino at 64.8%.
The bar chart below shows how people with the first name Sebastian 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 Sebastian at the time of the Census. A first name does not determine a person's race or ethnicity.
- Hispanic or Latino64.8% · 101,191
- White26.4% · 41,281
- Two or more races3.3% · 5,207
- Black or African American3.1% · 4,820
- Asian and Pacific Islander2.0% · 3,115
- American Indian and Alaska Native0.3% · 523
Ethnicity
Ancestry of the Janikowski surname
Self-reported race and ethnicity breakdown for people with the surname Janikowski, from the 2020 US Census Bureau. The largest group is White at 96.3%.
The bar chart below shows how people with the surname Janikowski 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 Janikowski at the time of the Census. A surname does not determine a person's race or ethnicity.
- White96.3% · 440
- Two or more races1.8% · 8
- Hispanic or Latino0.9% · 4
- Asian and Pacific Islander0.7% · 3
- American Indian and Alaska Native0.4% · 2
Methodology
How we calculated this
The first name Sebastian has a living-bearer frequency of 0.0596% of the US population, based on 204,231 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 Sebastian right now.
The surname Janikowski appears at a rate of 0.15 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0002%.
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 Sebastian Janikowski. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Sebastian
FAQ
Sebastian Janikowski: questions and answers
How many people are named Sebastian Janikowski?
We estimate approximately 1 people in the United States share the full name Sebastian Janikowski. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0596%) with the surname frequency (0.15 per 100K) against the current US population.
How rare is the name Sebastian Janikowski?
We classify Sebastian Janikowski as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Sebastian a male or female name?
Sebastian is predominantly male. Out of 209,783 total SSA registrations, 99.8% were male and 0.2% were female. See the full Sebastian 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 have the full name Sebastian Janikowski?
Our sister site HowManyOfMe.org answers how many people are called Sebastian Janikowski at a glance, with the living-bearer count up front.