Casmira
A feminine name of uncertain origin, possibly meaning "pure" or "chaste".
Name Census estimates that about 10 living Americans carry the first name Casmira. The name is used almost exclusively for girls. The average person named Casmira today is around 33 years old, and the year with the single highest number of Casmira births was 1920 (11 babies).
This page is the full Name Census profile for Casmira. 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 Casmira. It is among the rarest names in the SSA records.
People living today
10
~ 1 in 34,275,434 Americans
Peak year
1920
11 babies that year
Average age
33
years old
2001 SSA rank
#10,265
Tracked since 1914
Popularity
Casmira: popularity over time
The SSA tracks Casmira from the 1910s through to the 2000s, spanning 3 decades of birth certificate data. The biggest single decade for the name was the 1910s, with 45 total registrations. Usage has dropped considerably from its 1910s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Casmira 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 Casmira during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Casmiras live
Origin
Meaning and history of Casmira
The given name Casmira has its origins in the Polish language. It is derived from the word "kazimierz," which means "to destroy peace" or "destroyer of peace." This name can be traced back to the 11th century in Poland.
The earliest recorded use of the name Casmira dates back to the 12th century, when it was mentioned in a Polish chronicle as the name of a noblewoman. It is believed that this name gained popularity in Poland during the Middle Ages, particularly among the aristocracy and royalty.
One of the most notable historical figures with the name Casmira was Casmira Jagiellon (1520-1551), a Polish princess and the daughter of King Sigismund I the Old. She was known for her intelligence and her role in promoting education and culture in Poland.
Another prominent figure was Casmira Opaliński (1608-1655), a Polish noblewoman and philanthropist who founded several hospitals and schools in her hometown of Poznań. She was also known for her support of the arts and her patronage of artists and writers.
In the 17th century, Casmira Zamoyska (1628-1681) was a renowned Polish poet and writer who wrote extensively on religious and philosophical themes. Her works were widely read and admired throughout Europe during her lifetime.
Casmira Curie (1867-1932), the daughter of the famous scientist Marie Curie, was a prominent Polish-French pianist and composer. She was known for her contributions to the promotion of Polish culture and music in France.
In the 20th century, Casmira Archipowa (1925-2019) was a celebrated Russian operatic soprano who performed in many of the world's most prestigious opera houses, including the Bolshoi Theatre in Moscow and the Metropolitan Opera in New York.
While the name Casmira has its roots in Polish history and culture, it has also been adopted and used in other parts of the world, particularly in Europe and the Americas. However, its historical significance and association with notable figures remain deeply rooted in its Polish origins.
People
Casmira + last name combinations
How many people share a full name with Casmira 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
Casmira: questions and answers
How many people in the U.S. are named Casmira?
Name Census puts the figure at roughly 10 living Americans. We arrive at this by taking every SSA birth registration for Casmira 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 34,275,434 US residents.
Is Casmira a common name?
We classify Casmira as "Very Rare". It ranks above 28.5% of all first names in the SSA dataset by living bearers. Across the full history of the data, 96 babies have been registered with this name.
When was Casmira most popular?
The single biggest year for Casmira was 1920, when 11 babies received the name. The fact that the average living Casmira is about 33 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
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 Casmira in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Casmira a female name?
Yes, 100.0% of people registered as Casmira 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 Casmira still being used today?
Yes. The SSA still recorded Casmira 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 Casmira 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.
Does every first name have Census demographic data?
No. The public Census first-name release only covers names that met the Bureau's publication rules, so many rarer names in the SSA files do not have a published Census demographic snapshot. In those cases, the page still shows the SSA trend, gender history, and state data.
How common is the name Casmira?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.