Sinjin
A masculine name of Old English origin meaning "passionate snake-lover".
Name Census estimates that about 369 living Americans carry the first name Sinjin. The name is used almost exclusively for boys. The average person named Sinjin today is around 25 years old, and the year with the single highest number of Sinjin births was 1992 (25 babies).
This page is the full Name Census profile for Sinjin. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
People living today
369
~ 1 in 928,874 Americans
Peak year
1992
25 babies that year
Average age
25
years old
2022 SSA rank
#14,031
Tracked since 1989
Census
Sinjin in the 2020 Census
The 2020 Census recorded 384 people with the first name Sinjin, which placed it at #24,893 in the published first-name tables. This is a snapshot of people who already had the name at the time of the Census.
The SSA sections elsewhere on this page answer a different question: how often parents gave the name to babies over time. The "people living today" figure on this page is different again: it is a current estimate built from SSA birth records and age-based survival rates, so the two numbers are not expected to match exactly.
2020 Census rank
#24,893
National first-name rank
People counted
384
384 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
White
49.2% of people with this name
Demographics
Ancestry and ethnicity for Sinjin
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Sinjin is White at 49.2%. The next largest groups are Hispanic (15.1%) and Two or More Races (15.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself.
The bar chart below shows how people with the first name Sinjin described their own race and ethnicity on the 2020 Census form. The Census Bureau groups responses into six broad categories: White, Black or African American, Hispanic or Latino, Asian and Pacific Islander, American Indian and Alaska Native, and Two or More Races. When a category has too few respondents for a given name, the Bureau suppresses the figure to protect individual privacy, which is why some names show fewer than six slices.
Percentages are shown so the breakdown is easy to read across every published category. Because the 2020 Census first-name file also includes raw headcounts for each group, Name Census can show those alongside the percentages in the legend and hover tooltip.
Keep in mind that these are self-reported numbers. A first name does not determine a person's race or ethnicity, and the distribution you see here reflects the specific population who happened to carry the name Sinjin at the time of the 2020 Census, not any inherent property of the name itself.
- White49.2% · 189
- Hispanic or Latino15.1% · 58
- Two or more races15.1% · 58
- Asian and Pacific Islander14.1% · 54
- Black or African American3.4% · 13
- American Indian and Alaska Native3.1% · 12
Popularity
Sinjin: popularity over time
The SSA tracks Sinjin from the 1980s through to the 2020s, spanning 5 decades of birth certificate data. The biggest single decade for the name was the 1990s, with 183 total registrations. Usage has dropped considerably from its 1990s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Sinjin by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Sinjin during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Sinjins live
Origin
Meaning and history of Sinjin
The name Sinjin is of English origin, derived from the Old English name Sincyn, which is a diminutive form of the name Sincyn or Sincin. This name can be traced back to the 7th century in England and is believed to be derived from the Old English word "sinc," meaning "treasure" or "jewel."
One of the earliest recorded instances of the name Sinjin can be found in the Domesday Book, a historic record compiled in 1086 under the orders of William the Conqueror. The entry mentions a landowner named Sinjin de Hastings, who held land in Norfolk, England.
In the 12th century, a monk named Sinjin of Brixworth is recorded as having lived at the Augustinian priory in Brixworth, Northamptonshire. His writings on religious matters and philosophy have been preserved in various monastic archives.
During the Middle Ages, the name Sinjin was relatively uncommon but maintained a presence among the English nobility. One notable figure was Sir Sinjin Audley, a 14th-century knight who fought alongside Edward III in the Hundred Years' War against France.
In the 16th century, the name gained some popularity in literary circles. Sinjin Marlowe, a playwright and contemporary of William Shakespeare, is credited with several works, including the tragedy "The Tragical History of Doctor Faustus."
The name Sinjin also appears in historical records from the American colonies. Sinjin Brewster, born in 1630, was among the early Puritan settlers in Massachusetts and is recorded as being a prominent figure in the establishment of the town of Duxbury.
As the centuries passed, the name Sinjin became less common, but it has been adopted by a few notable individuals throughout history. Sinjin Smith, an American professional tennis player born in 1954, achieved fame in the 1980s and won numerous doubles titles on the ATP Tour.
People
Sinjin + last name combinations
How many people share a full name with Sinjin as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with S
Other first names starting with S with a similar number of bearers.
FAQ
Sinjin: questions and answers
How many people in the U.S. are named Sinjin?
Name Census puts the figure at roughly 369 living Americans. We arrive at this by taking every SSA birth registration for Sinjin going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 928,874 US residents.
Is Sinjin a common name?
We classify Sinjin as "Very Rare". It ranks above 81.5% of all first names in the SSA dataset by living bearers. Across the full history of the data, 376 babies have been registered with this name.
When was Sinjin most popular?
The single biggest year for Sinjin was 1992, when 25 babies received the name. The fact that the average living Sinjin is about 25 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Sinjin in the 2020 Census?
The published 2020 Census first-name tables recorded 384 people with the name Sinjin, or 0.13 per 100,000 residents. That placed it at #24,893 in the national Census ranking for first names.
Why is the Census count different from the living estimate?
Because they measure different things. The Census figure is a count of people who had the name Sinjin in 2020. The living estimate aims to answer a current question instead: how many people with the name are alive today, based on SSA birth records and age-based survival rates. Since one number is a 2020 snapshot and the other is a present-day estimate, they are not expected to be identical.
What does the Census say about the gender split for Sinjin?
In the 2020 Census sex table, Sinjin leans strongly male. 369 people counted with this name were male (97.1%), compared with 11 female bearers (2.9%). The Census view is a snapshot of people living with the name in 2020, while the SSA section above tracks births across time.
What does the Census say about the background of people named Sinjin?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Sinjin is White at 49.2%. The next largest groups are Hispanic (15.1%) and Two or More Races (15.1%). These figures describe the people who had the name in 2020, not any inherent property of the name itself. The percentages in the chart above come from self-reported race and Hispanic-origin responses in the 2020 Census.
Which group reports the name Sinjin most often in the Census?
White is the largest reported group for people named Sinjin in the 2020 Census, accounting for 49.2% (189 people in the published table).
Why can the Census sex total and race total differ slightly?
The Census Bureau published separate 2020 tables for sex and for race/Hispanic origin, and the released figures can differ slightly because of privacy protection in the public files. That is why this page treats the gender section and the race/origin section as two related snapshots instead of forcing them into one identical total.
Does every first name have Census demographic data?
No. The public Census first-name release only includes names that met the Bureau's publication rules, so many rarer names in the SSA files have no Census demographic snapshot. When that happens, the SSA trend, gender history, and state sections still appear, but the 2020 Census demographic sections are omitted.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Sinjin in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Sinjin a male name?
Yes, 100.0% of people registered as Sinjin in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Sinjin still being used today?
Yes. The SSA still recorded Sinjin in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Sinjin can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
How many people have Sinjin as a first name?
For a quick modern take, check how many Americans are named Sinjin on our sister site HowManyOfMe.org.