Jilliane
A feminine name, variant spelling of Jillian, of English origin meaning "youthful".
Name Census estimates that about 141 living Americans carry the first name Jilliane. The name is used almost exclusively for girls. The average person named Jilliane today is around 39 years old, and the year with the single highest number of Jilliane births was 1983 (12 babies).
This page is the full Name Census profile for Jilliane. 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
141
~ 1 in 2,430,882 Americans
Peak year
1983
12 babies that year
Average age
39
years old
2010 SSA rank
#18,267
Tracked since 1977
Census
Jilliane in the 2020 Census
The 2020 Census recorded 229 people with the first name Jilliane, which placed it at #35,223 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
#35,223
National first-name rank
People counted
229
229 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
White
54.1% of people with this name
Demographics
Ancestry and ethnicity for Jilliane
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Jilliane is White at 54.1%. The next largest groups are Asian/Pacific Islander (28.4%) and Hispanic (9.6%). 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 Jilliane 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 Jilliane at the time of the 2020 Census, not any inherent property of the name itself.
- White54.1% · 124
- Asian and Pacific Islander28.4% · 65
- Hispanic or Latino9.6% · 22
- Black or African American3.9% · 9
- Two or more races3.9% · 9
Popularity
Jilliane: popularity over time
The SSA tracks Jilliane from the 1970s through to the 2010s, spanning 5 decades of birth certificate data. The biggest single decade for the name was the 1980s, with 83 total registrations. Usage has dropped considerably from its 1980s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Jilliane 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 Jilliane during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Jillianes live
Origin
Meaning and history of Jilliane
The name Jilliane is a derivative of the feminine given name Gillian, which has its origins in the medieval French form of the masculine name Julian. The name Julian itself is derived from the ancient Roman family name Iulius or Julius, a name borne by several prominent historical figures, including the Roman dictator Julius Caesar.
The root of the name Julian can be traced back to the Greek word "ioulos," meaning "downy-bearded" or "youth." This connection to youth and vitality may have contributed to the popularity of the name in various cultures throughout history.
Jilliane, as a variation of Gillian, likely emerged in the English-speaking world during the Middle Ages or the Renaissance period. It was a time when many names underwent transformations and adaptations as they spread across different regions and languages.
While there are no definitive records of the name Jilliane appearing in ancient texts or religious scriptures, the closely related name Gillian can be found in various historical documents and literary works from the medieval period onwards.
One of the earliest recorded instances of the name Gillian can be found in the 12th-century poem "The Owl and the Nightingale," written in Middle English. In this work, the character Gillian is referred to as a beautiful young woman.
Throughout history, several notable figures have borne the name Jilliane or its variants. One such individual was Gillian of Tewkesbury (c. 1066-1115), an English noblewoman who was a benefactor of religious institutions and is mentioned in the chronicles of the time.
Another prominent figure was Gillian de Lacy (c. 1153-1186), an Irish noblewoman and the daughter of Hugh de Lacy, Lord of Meath. She played a significant role in the Norman conquest of Ireland and the establishment of English rule in the region.
In the realm of literature, the name Gillian is associated with the character Gillian Leigh in the novel "The Quiet American" by Graham Greene (1904-1991). This novel, set during the First Indochina War, explored themes of colonialism and moral ambiguity.
In the world of performing arts, the name Jillian has been borne by actresses such as Jillian Murray (1884-1951), a British stage and film actress known for her roles in silent films and early talkies.
Another notable figure was Jillian Becker (1939-2016), a South African-born writer and journalist who authored several novels and non-fiction works, including her memoir "Hitler's Children: The Story of the Baader-Meinhof Terrorist Gang."
People
Jilliane + last name combinations
How many people share a full name with Jilliane as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with J
Other first names starting with J with a similar number of bearers.
FAQ
Jilliane: questions and answers
How many people in the U.S. are named Jilliane?
Name Census puts the figure at roughly 141 living Americans. We arrive at this by taking every SSA birth registration for Jilliane 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 2,430,882 US residents.
Is Jilliane a common name?
We classify Jilliane as "Very Rare". It ranks above 69.4% of all first names in the SSA dataset by living bearers. Across the full history of the data, 149 babies have been registered with this name.
When was Jilliane most popular?
The single biggest year for Jilliane was 1983, when 12 babies received the name. The fact that the average living Jilliane is about 39 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Jilliane in the 2020 Census?
The published 2020 Census first-name tables recorded 229 people with the name Jilliane, or 0.08 per 100,000 residents. That placed it at #35,223 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 Jilliane 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 Jilliane?
In the 2020 Census sex table, Jilliane leans strongly female. 236 people counted with this name were female (98.7%), compared with 3 male bearers (1.3%). 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 Jilliane?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Jilliane is White at 54.1%. The next largest groups are Asian/Pacific Islander (28.4%) and Hispanic (9.6%). 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 Jilliane most often in the Census?
White is the largest reported group for people named Jilliane in the 2020 Census, accounting for 54.1% (124 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 Jilliane in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Jilliane a female name?
Yes, 100.0% of people registered as Jilliane in the SSA data are female. 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 Jilliane still being used today?
Yes. The SSA still recorded Jilliane 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 Jilliane 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 common is the name Jilliane?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.