Chiyo
A feminine Japanese name meaning "eternal longevity" or "long life".
Name Census estimates that about 17 living Americans carry the first name Chiyo. The name is used almost exclusively for girls. The average person named Chiyo today is around 23 years old, and the year with the single highest number of Chiyo births was 1917 (12 babies).
This page is the full Name Census profile for Chiyo. 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.
For a British comparison, Name Census UK has a UK baby-name profile for Chiyo with official rankings and popularity over time.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Chiyo. It is among the rarest names in the SSA records.
People living today
17
~ 1 in 20,162,020 Americans
Peak year
1917
12 babies that year
Average age
23
years old
2019 SSA rank
#16,044
Tracked since 1914
Census
Chiyo in the 2020 Census
The 2020 Census recorded 304 people with the first name Chiyo, which placed it at #29,229 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
#29,229
National first-name rank
People counted
304
304 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
Asian and Pacific Islander
84.9% of people with this name
Demographics
Ancestry and ethnicity for Chiyo
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Chiyo is Asian/Pacific Islander at 84.9%. The next largest groups are Two or More Races (11.2%) and White (3.9%). 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 Chiyo 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 Chiyo at the time of the 2020 Census, not any inherent property of the name itself.
- Asian and Pacific Islander84.9% · 258
- Two or more races11.2% · 34
- White3.9% · 12
Popularity
Chiyo: popularity over time
The SSA tracks Chiyo from the 1910s through to the 2010s, spanning 4 decades of birth certificate data. The biggest single decade for the name was the 1920s, with 65 total registrations. Usage has dropped considerably from its 1920s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Chiyo 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 Chiyo during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Chiyos live
The SSA's state-level files cover 3 states and territories. Hawaii, California, Washington recorded the most babies named Chiyo, while Washington, California, Hawaii recorded the fewest. The average across all reporting states is about 9 registrations each.
Origin
Meaning and history of Chiyo
The name Chiyo originates from Japanese language and culture, with its roots tracing back to the Heian period (794-1185 AD) in Japan. The name is derived from two kanji characters: "chi" meaning "thousand" and "yo" meaning "generations" or "eternities". Together, the name Chiyo symbolizes a wish for longevity or a long and enduring life.
One of the earliest recorded mentions of the name Chiyo can be found in the classical Japanese literature work "The Tale of Genji" written by Murasaki Shikibu in the early 11th century. The name was associated with a minor character in the novel, indicating its usage during that time period.
In the 17th century, the name gained prominence when Chiyo-ni, a renowned Buddhist nun and poet, rose to fame in Japan. Born in 1703 as Chiyo Sugawara, she was a talented writer and is considered one of the greatest poets of the Edo period. Her works, which often explored themes of nature and spirituality, have left a lasting impact on Japanese literature.
Another notable figure with the name Chiyo was Chiyo Miyako, a celebrated geisha and renowned poet who lived in the late 18th and early 19th centuries. Born in 1763, she was known for her exceptional skill in traditional Japanese arts, including poetry, dance, and music. Her poems, often composed in the haiku and tanka forms, were widely admired and celebrated during her lifetime.
In the 20th century, Chiyo Uno, an influential Japanese modernist poet, carried on the literary tradition associated with the name. Born in 1897, she was a pioneer of free verse poetry and explored themes of feminism and social commentary in her works. Her poetry collections, such as "Descent into the Mines" and "Shooting Stars," earned her critical acclaim and a place in the canon of modern Japanese literature.
Another notable figure with the name Chiyo was Chiyo Aizawa, a Japanese actress and singer who achieved fame in the 1950s and 1960s. Born in 1929, she starred in numerous films and television shows, and her singing career spanned several decades. Aizawa's contributions to Japanese popular culture during the post-war era made her a beloved figure in Japan.
Throughout its history, the name Chiyo has been associated with literary and artistic accomplishments, as well as a reverence for traditional Japanese culture. Its enduring popularity reflects a desire for longevity and a connection to the rich heritage of Japan.
People
Chiyo + last name combinations
How many people share a full name with Chiyo 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
Chiyo: questions and answers
How many people in the U.S. are named Chiyo?
Name Census puts the figure at roughly 17 living Americans. We arrive at this by taking every SSA birth registration for Chiyo 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 20,162,020 US residents.
Is Chiyo a common name?
We classify Chiyo as "Very Rare". It ranks above 37.6% of all first names in the SSA dataset by living bearers. Across the full history of the data, 135 babies have been registered with this name.
When was Chiyo most popular?
The single biggest year for Chiyo was 1917, when 12 babies received the name. The fact that the average living Chiyo is about 23 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Chiyo in the 2020 Census?
The published 2020 Census first-name tables recorded 304 people with the name Chiyo, or 0.10 per 100,000 residents. That placed it at #29,229 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 Chiyo 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 Chiyo?
In the 2020 Census sex table, Chiyo appears almost entirely female. Of the 306 people counted with this name, 99.3% 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 Chiyo?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Chiyo is Asian/Pacific Islander at 84.9%. The next largest groups are Two or More Races (11.2%) and White (3.9%). 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 Chiyo most often in the Census?
Asian/Pacific Islander is the largest reported group for people named Chiyo in the 2020 Census, accounting for 84.9% (258 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 Chiyo in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Chiyo a female name?
Yes, 100.0% of people registered as Chiyo 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 Chiyo still being used today?
Yes. The SSA still recorded Chiyo 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 Chiyo 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 are called Chiyo?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.