How Many People Are Named Sienna?
An estimated 36,821 people in the United States have the first name Sienna. It is almost exclusively a female name. The average bearer is 13 years old, and Sienna peaked in popularity in 2024 with 2,113 births that year.
Below you will find a full statistical profile of Sienna 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 Sienna paired with any surname.
Key Insights
- Sienna is a modern name. With an average bearer age of just 13, it has gained most of its popularity in recent years.
Estimated Living Americans
36,821
About 1 in 9,309 people in the U.S.
Rarity
Uncommon
Predicted Gender
Female
100.0% confidence
Average Age
13
years old
Peak Year
2024
2,113 births
Total Registered
37,217
since 1880
Gender Distribution for Sienna
Sienna is almost exclusively a female name. Out of 37,217 total births registered, 100.0% were female.
Sienna as a male name
Ranked #14,045 in 2011
5 male births in 2011
Peak: 2008 (5 births)
Sienna as a female name
Ranked #139 in 2024
2,113 female births in 2024
Peak: 2024 (2,113 births)
Sienna: Popularity Over Time
SSA records for Sienna span from the 1960s to the 2020s, covering 7 decades of naming data. The most popular decade for this name was the 2010s, when 14,139 babies were registered. While Sienna is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Sienna by Decade
How has Sienna 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.
Sienna by State
Birth registrations for Sienna span all 51 states and territories in the SSA database. The highest counts are in California, New York, Texas. The lowest are in Vermont, Maine, Wyoming. On average, about 699 Siennas were registered per state.
Sienna + Last Name Combinations
How many people share a full name with Sienna as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sienna
Other first names starting with S with a similar number of bearers.
Sienna: Questions and Answers
How many people in the U.S. are named Sienna?
We estimate approximately 36,821 people named Sienna 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 9,309 Americans share this first name.
Is Sienna a common name?
Sienna is classified as "Uncommon" and is more popular than 99% of all first names in the SSA database. A total of 37,217 births have been registered with this name since 1880.
When was Sienna most popular?
Sienna reached peak popularity in 2024, when 2,113 babies were given this name. The average age of a living person named Sienna is approximately 13 years old, reflecting when the name was most commonly given.
Is Sienna a female name?
Sienna is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Sienna Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sienna Smith, Sienna Johnson, Sienna 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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