How Many People Are Named Sianna?
An estimated 1,939 people in the United States have the first name Sianna. It is almost exclusively a female name. The average bearer is 16 years old, and Sianna peaked in popularity in 2024 with 98 births that year.
Below you will find a full statistical profile of Sianna as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Sianna paired with any surname.
Key Insights
- Sianna is a modern name. With an average bearer age of just 16, it has gained most of its popularity in recent years.
Estimated Living Americans
1,939
About 1 in 176,769 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
16
years old
Peak Year
2024
98 births
Total Registered
1,965
since 1880
Gender Distribution for Sianna
Sianna is almost exclusively a female name. Out of 1,965 total births registered, 100.0% were female.
Sianna as a female name
Ranked #2,003 in 2024
98 female births in 2024
Peak: 2024 (98 births)
Sianna: Popularity Over Time
SSA records for Sianna span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2000s, when 679 babies were registered. While Sianna is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Sianna by Decade
How has Sianna 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.
Sianna by State
Birth registrations for Sianna span all 10 states and territories in the SSA database. The highest counts are in California, Texas, New York. The lowest are in North Carolina, Massachusetts, Illinois. On average, about 72 Siannas were registered per state.
Sianna + Last Name Combinations
How many people share a full name with Sianna as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sianna
Other first names starting with S with a similar number of bearers.
Sianna: Questions and Answers
How many people in the U.S. are named Sianna?
We estimate approximately 1,939 people named Sianna 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 176,769 Americans share this first name.
Is Sianna a common name?
Sianna is classified as "Rare" and is more popular than 93.6% of all first names in the SSA database. A total of 1,965 births have been registered with this name since 1880.
When was Sianna most popular?
Sianna reached peak popularity in 2024, when 98 babies were given this name. The average age of a living person named Sianna is approximately 16 years old, reflecting when the name was most commonly given.
Is Sianna a female name?
Sianna is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Sianna Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sianna Smith, Sianna Johnson, Sianna 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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