Zosia
Diminutive of the Polish name Zofia, derived from Sophia meaning "wisdom".
Name Census estimates that about 472 living Americans carry the first name Zosia. The name is used almost exclusively for girls. The average person named Zosia today is around 11 years old, and the year with the single highest number of Zosia births was 2022 (44 babies).
This page is the full Name Census profile for Zosia. 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 Zosia with official rankings and popularity over time.
People living today
472
~ 1 in 726,174 Americans
Peak year
2022
44 babies that year
Average age
11
years old
2024 SSA rank
#4,542
Tracked since 1997
Census
Zosia in the 2020 Census
The 2020 Census recorded 414 people with the first name Zosia, which placed it at #23,579 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
#23,579
National first-name rank
People counted
414
414 in the published race/origin table
Per 100,000
0.1
People with this name in 2020
Largest reported group
White
79.5% of people with this name
Demographics
Ancestry and ethnicity for Zosia
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Zosia is White at 79.5%. The next largest groups are Two or More Races (9.9%) and Hispanic (6.3%). 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 Zosia 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 Zosia at the time of the 2020 Census, not any inherent property of the name itself.
- White79.5% · 329
- Two or more races9.9% · 41
- Hispanic or Latino6.3% · 26
- Black or African American2.4% · 10
- Asian and Pacific Islander1.9% · 8
Popularity
Zosia: popularity over time
The SSA tracks Zosia from the 1990s through to the 2020s, spanning 4 decades of birth certificate data. The biggest single decade for the name was the 2010s, with 193 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
Zosia 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 Zosia during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Zosias live
Origin
Meaning and history of Zosia
The name Zosia is a diminutive form of the Polish name Zofia, which is derived from the Greek name Sophia, meaning "wisdom." The name has its roots in ancient Greece and has been used in various forms throughout Europe for centuries.
In Poland, the name Zofia has been popular since the Middle Ages. It gained particular prominence in the 16th and 17th centuries, when several Polish queens bore this name, including Zofia Holszańska (1405-1461) and Zofia Opalińska (1599-1654).
One of the earliest recorded instances of the name Zosia can be found in the works of the Polish writer and poet Adam Mickiewicz (1798-1855). In his epic poem "Pan Tadeusz," published in 1834, one of the main characters is named Zosia.
Throughout history, there have been several notable women named Zosia or Zofia. Zofia Kossak-Szczucka (1889-1968) was a prominent Polish writer and activist who played a significant role in the Polish resistance movement during World War II.
Zosia Samosia (1888-1921) was a Polish actress and singer who gained fame in the early 20th century for her performances in operettas and musical comedies.
Zosia Zaleska (1825-1887) was a Polish painter and one of the first women to study at the Academy of Fine Arts in Warsaw.
Zosia Derkacz (1908-1984) was a Polish World War II resistance fighter and member of the Polish Home Army. She participated in the Warsaw Uprising of 1944 and was awarded the Cross of Valor for her bravery.
Zosia Ajdukowicz (1932-2019) was a Polish writer and translator who specialized in literature for children and young adults. She was known for her adaptations of classic works and her original stories.
While the name Zosia has its roots in ancient Greece, it has become deeply ingrained in Polish culture and history, with numerous notable figures bearing this name over the centuries.
People
Zosia + last name combinations
How many people share a full name with Zosia as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with Z
Other first names starting with Z with a similar number of bearers.
FAQ
Zosia: questions and answers
How many people in the U.S. are named Zosia?
Name Census puts the figure at roughly 472 living Americans. We arrive at this by taking every SSA birth registration for Zosia 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 726,174 US residents.
Is Zosia a common name?
We classify Zosia as "Very Rare". It ranks above 84% of all first names in the SSA dataset by living bearers. Across the full history of the data, 476 babies have been registered with this name.
When was Zosia most popular?
The single biggest year for Zosia was 2022, when 44 babies received the name. The fact that the average living Zosia is about 11 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
How common was Zosia in the 2020 Census?
The published 2020 Census first-name tables recorded 414 people with the name Zosia, or 0.14 per 100,000 residents. That placed it at #23,579 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 Zosia 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 Zosia?
In the 2020 Census sex table, Zosia leans strongly female. 408 people counted with this name were female (98.6%), compared with 6 male bearers (1.4%). 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 Zosia?
In the 2020 Census race and Hispanic-origin table, the largest reported group for people named Zosia is White at 79.5%. The next largest groups are Two or More Races (9.9%) and Hispanic (6.3%). 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 Zosia most often in the Census?
White is the largest reported group for people named Zosia in the 2020 Census, accounting for 79.5% (329 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 Zosia in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Zosia a female name?
Yes, 100.0% of people registered as Zosia 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 Zosia still being used today?
Yes. The SSA still recorded Zosia 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 Zosia 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 have Zosia as a first name?
For a quick modern estimate, our sister site HowManyOfMe.org answers that in one glance, with the living-bearer count front and centre.