How Many People Are Named Sebastiana?
An estimated 161 people in the United States have the first name Sebastiana. It is almost exclusively a female name. The average bearer is 19 years old, and Sebastiana peaked in popularity in 1921 with 15 births that year.
Below you will find a full statistical profile of Sebastiana as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. You can also check how many people share the full name Sebastiana paired with any surname.
Estimated Living Americans
161
About 1 in 2,128,909 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
19
years old
Peak Year
1921
15 births
Total Registered
332
since 1880
Gender Distribution for Sebastiana
Sebastiana is almost exclusively a female name. Out of 332 total births registered, 100.0% were female.
Sebastiana as a female name
Ranked #17,207 in 2023
5 female births in 2023
Peak: 1921 (15 births)
Sebastiana in the 2020 Census
The 2020 Census recorded 1,241 people with the first name Sebastiana, which placed it at #10,639 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Sebastiana was recorded as predominantly female. Out of 1,241 people with this name in that snapshot, 2.5% were male and 97.5% were female. That is very close to the long-run birth pattern in SSA records, where the name is female 100.0% of the time.
Census Count
1,241
people with this name
Census Rank
#10,639
among Census first names
Frequency Rate
0.41
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Sebastiana was most commonly recorded among people who identified as Hispanic (70.83%). The next largest recorded groups were White (24.50%) and Black (1.93%).
These percentages describe the people who had the first name Sebastiana in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Sebastiana.
| Group | Share | Count |
|---|---|---|
| Hispanic | 70.83% | 879 |
| White | 24.50% | 304 |
| Black | 1.93% | 24 |
| Asian and Pacific Islander | 1.77% | 22 |
| Two or More Races | 0.97% | 12 |
Sebastiana: Popularity Over Time
SSA records for Sebastiana span from the 1910s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 1920s, when 82 babies were registered. While Sebastiana is less common than at its peak in the 1920s, it remains a well-established name with steady registrations.
Sebastiana by Decade
How has Sebastiana tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Sebastiana by State
Sebastiana + Last Name Combinations
How many people share a full name with Sebastiana as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sebastiana
Other first names starting with S with a similar number of bearers.
Sebastiana: Questions and Answers
How many people in the U.S. are named Sebastiana?
We estimate approximately 161 people named Sebastiana are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 2,128,909 Americans share this first name.
Is Sebastiana a common name?
Sebastiana is classified as "Very Rare" and is more popular than 71.3% of all first names in the SSA database. A total of 332 births have been registered with this name since 1880.
When was Sebastiana most popular?
Sebastiana reached peak popularity in 1921, when 15 babies were given this name. The average age of a living person named Sebastiana is approximately 19 years old, reflecting when the name was most commonly given.
How common was Sebastiana in the 2020 Census?
The 2020 Census recorded 1,241 people with the first name Sebastiana. That placed it at #10,639 in the published Census first-name tables, or 0.41 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Sebastiana was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Sebastiana?
In the 2020 Census snapshot, Sebastiana was recorded as predominantly female. The published split was 2.5% male and 97.5% female.
What does the Census say about the background of people named Sebastiana?
In the 2020 Census, the first name Sebastiana was most commonly recorded among people who identified as Hispanic (70.83%). The next largest recorded groups were White (24.50%) and Black (1.93%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
Is Sebastiana a female name?
Sebastiana is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
Why can Sebastiana have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Sebastiana peaked in 1921, and the average living bearer is about 19 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
How many Sebastiana Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sebastiana Smith, Sebastiana Johnson, Sebastiana Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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