Billijo
A combination of the names Bill and Jo, potentially of modern origin.
Name Census estimates that about 166 living Americans carry the first name Billijo. The name is used almost exclusively for girls. The average person named Billijo today is around 49 years old, and the year with the single highest number of Billijo births was 1975 (16 babies).
This page is the full Name Census profile for Billijo. 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
166
~ 1 in 2,064,785 Americans
Peak year
1975
16 babies that year
Average age
49
years old
2004 SSA rank
#16,491
Tracked since 1965
Census
Billijo in the 2020 Census
The 2020 Census recorded 334 people with the first name Billijo, which placed it at #27,416 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
#27,416
National first-name rank
People counted
334
334 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
White
87.4% of people with this name
Demographics
Ancestry and ethnicity for Billijo
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Billijo is White at 87.4%. The next largest groups are Two or More Races (6.6%) and Hispanic (2.4%). 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 Billijo 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 Billijo at the time of the 2020 Census, not any inherent property of the name itself.
- White87.4% · 292
- Two or more races6.6% · 22
- Hispanic or Latino2.4% · 8
- Black or African American2.1% · 7
- American Indian and Alaska Native1.2% · 4
- Asian and Pacific Islander0.3% · 1
Popularity
Billijo: popularity over time
The SSA tracks Billijo from the 1960s through to the 2000s, spanning 5 decades of birth certificate data. The biggest single decade for the name was the 1970s, with 106 total registrations. Usage has dropped considerably from its 1970s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Billijo 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 Billijo during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Origin
Meaning and history of Billijo
The name Billijo is believed to have originated in the ancient Germanic tribes that inhabited parts of modern-day Germany and the surrounding regions. It is derived from the Proto-Germanic words "bil" meaning "sword" or "blade" and "jo" meaning "battle" or "war." Thus, the name Billijo likely referred to a skilled warrior or someone known for their prowess in battle.
One of the earliest recorded mentions of the name Billijo can be found in the Nibelungenlied, a medieval Germanic heroic epic poem from the 13th century. In this work, Billijo is depicted as a brave and fearless warrior who fought alongside the legendary hero Siegfried. However, the name may have been in use long before this particular literary reference.
Throughout history, there have been several notable individuals bearing the name Billijo. One of the most famous was Billijo of Saxony (c. 950 – 1015), a powerful Saxon nobleman and military leader who played a crucial role in the consolidation of the Holy Roman Empire under the Ottonian dynasty. He was known for his valor in battle and his unwavering loyalty to Emperor Otto III.
Another significant figure was Billijo the Scribe (c. 1120 – 1195), a Benedictine monk and scholar who was renowned for his meticulous work in transcribing and preserving ancient manuscripts. His efforts contributed significantly to the preservation of knowledge and literature during the Middle Ages.
In the 14th century, Billijo of Augsburg (1310 – 1379) was a prominent German merchant and banker who amassed considerable wealth through his successful trading operations. He was also a patron of the arts and supported the construction of several churches and public buildings in his hometown.
During the Renaissance period, Billijo Boccaccio (1445 – 1508) was an Italian humanist and scholar who played a significant role in the revival of classical learning. He was known for his translations of ancient Greek and Latin texts, as well as his own literary works, which included poetry and philosophical treatises.
Moving forward in time, Billijo von Humboldt (1767 – 1835) was a Prussian philosopher, linguist, and diplomat who made important contributions to the study of comparative linguistics and anthropology. He is considered one of the founders of modern ethnolinguistics and was a pioneer in the scientific study of human languages and cultures.
These are just a few examples of notable individuals throughout history who bore the name Billijo, a name steeped in ancient Germanic tradition and associated with strength, courage, and martial prowess.
People
Billijo + last name combinations
How many people share a full name with Billijo as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with B
Other first names starting with B with a similar number of bearers.
FAQ
Billijo: questions and answers
How many people in the U.S. are named Billijo?
Name Census puts the figure at roughly 166 living Americans. We arrive at this by taking every SSA birth registration for Billijo 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 2,064,785 US residents.
Is Billijo a common name?
We classify Billijo as "Very Rare". It ranks above 71.7% of all first names in the SSA dataset by living bearers. Across the full history of the data, 183 babies have been registered with this name.
When was Billijo most popular?
The single biggest year for Billijo was 1975, when 16 babies received the name. The fact that the average living Billijo is about 49 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Billijo in the 2020 Census?
The published 2020 Census first-name tables recorded 334 people with the name Billijo, or 0.11 per 100,000 residents. That placed it at #27,416 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 Billijo 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 Billijo?
In the 2020 Census sex table, Billijo appears almost entirely female. Of the 326 people counted with this name, 100.0% were female and only a very small share were male. 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 Billijo?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Billijo is White at 87.4%. The next largest groups are Two or More Races (6.6%) and Hispanic (2.4%). 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 Billijo most often in the Census?
White is the largest reported group for people named Billijo in the 2020 Census, accounting for 87.4% (292 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 Billijo in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Billijo a female name?
Yes, 100.0% of people registered as Billijo 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 Billijo still being used today?
Yes. The SSA still recorded Billijo 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 Billijo 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 share the name Billijo?
You can see how many people share the name Billijo on our sister site HowManyOfMe.org — same data roots, lighter UI.