Casiano
Of Spanish origin, meaning "chance" or "happenstance".
Name Census estimates that about 13 living Americans carry the first name Casiano. The name is used almost exclusively for boys. The average person named Casiano today is around 49 years old, and the year with the single highest number of Casiano births was 1954 (5 babies).
This page is the full Name Census profile for Casiano. 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.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Casiano. It is among the rarest names in the SSA records.
People living today
13
~ 1 in 26,365,718 Americans
Peak year
1954
5 babies that year
Average age
49
years old
1996 SSA rank
#9,209
Tracked since 1954
Census
Casiano in the 2020 Census
The 2020 Census recorded 344 people with the first name Casiano, which placed it at #26,849 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
#26,849
National first-name rank
People counted
344
344 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
Hispanic or Latino
81.4% of people with this name
Demographics
Ancestry and ethnicity for Casiano
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Casiano is Hispanic at 81.4%. The next largest groups are Asian/Pacific Islander (15.4%) and White (1.7%). 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 Casiano 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 Casiano at the time of the 2020 Census, not any inherent property of the name itself.
- Hispanic or Latino81.4% · 280
- Asian and Pacific Islander15.4% · 53
- White1.7% · 6
- Black or African American1.5% · 5
Popularity
Casiano: popularity over time
The SSA tracks Casiano from the 1950s through to the 1990s, spanning 3 decades of birth certificate data. The biggest single decade for the name was the 1990s, with 5 total registrations. The name continues to be given at rates close to its all-time high, suggesting it has not yet fallen out of fashion.
Babies born per year
Decades
Casiano 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 Casiano 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 Casiano
The name Casiano originates from the Latin language and has its roots in the ancient Roman civilization. It is derived from the Latin word "castus," which means "pure" or "chaste." The name was popular among early Christian communities in ancient Rome and the surrounding regions.
One of the earliest recorded instances of the name Casiano can be found in the writings of Saint Ambrose, a 4th-century bishop and theologian from Milan. He mentioned a certain Casiano in his letters, referring to him as a devout Christian who lived a life of purity and virtue.
In the 5th century, a monk named Casiano (also known as John Cassian) played a significant role in the development of Western monasticism. He was born around 360 AD in present-day Romania and later traveled to Egypt, where he studied under the Desert Fathers. Casiano's writings, particularly his works "Institutes" and "Conferences," became influential texts in the monastic tradition.
Another notable figure with the name Casiano was a Spanish priest and theologian born in Seville in the late 15th century. Casiano Bartholomé (1480-1560) was a prominent figure in the Catholic Church during the time of the Reformation. He authored several theological treatises and served as a member of the Council of Trent, which helped define Catholic doctrine in response to the Protestant Reformation.
In the 17th century, Casiano dal Pozzo (1588-1657) was an Italian scholar, antiquarian, and art collector. He amassed a significant collection of drawings, prints, and archaeological artifacts, which later formed the basis of the Museo Cartaceo (Paper Museum) in Rome.
During the 19th century, Casiano Aznar de Polanco (1815-1875) was a Spanish military officer and politician who served as the Minister of War and later as the Prime Minister of Spain from 1873 to 1874.
These are just a few examples of individuals throughout history who bore the name Casiano. While its popularity has waxed and waned over the centuries, the name has maintained its connection to the virtues of purity and chastity, as well as its association with Christian traditions and monastic life.
People
Casiano + last name combinations
How many people share a full name with Casiano as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with C
Other first names starting with C with a similar number of bearers.
FAQ
Casiano: questions and answers
How many people in the U.S. are named Casiano?
Name Census puts the figure at roughly 13 living Americans. We arrive at this by taking every SSA birth registration for Casiano 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 26,365,718 US residents.
Is Casiano a common name?
We classify Casiano as "Very Rare". It ranks above 33.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 15 babies have been registered with this name.
When was Casiano most popular?
The single biggest year for Casiano was 1954, when 5 babies received the name. The fact that the average living Casiano 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 Casiano in the 2020 Census?
The published 2020 Census first-name tables recorded 344 people with the name Casiano, or 0.11 per 100,000 residents. That placed it at #26,849 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 Casiano 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 Casiano?
In the 2020 Census sex table, Casiano leans strongly male. 340 people counted with this name were male (97.4%), compared with 9 female bearers (2.6%). 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 Casiano?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Casiano is Hispanic at 81.4%. The next largest groups are Asian/Pacific Islander (15.4%) and White (1.7%). 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 Casiano most often in the Census?
Hispanic is the largest reported group for people named Casiano in the 2020 Census, accounting for 81.4% (280 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 Casiano in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Casiano a male name?
Yes, 100.0% of people registered as Casiano 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 Casiano still being used today?
Yes. The SSA still recorded Casiano 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 Casiano 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 Casiano?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.