How Many People Are Named Sinnie?
An estimated 3 people in the United States have the first name Sinnie. It is almost exclusively a female name. The average bearer is 78 years old, and Sinnie peaked in popularity in 1916 with 7 births that year.
Below you will find a full statistical profile of Sinnie 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 Sinnie paired with any surname.
Key Insights
- With an average bearer age of 78, Sinnie is a vintage name most associated with earlier generations. Most living bearers were born before 1958.
- Sinnie is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
3
About 1 in 114,251,446 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
78
years old
Peak Year
1916
7 births
Total Registered
33
since 1880
Gender Distribution for Sinnie
Sinnie is almost exclusively a female name. Out of 33 total births registered, 100.0% were female.
Sinnie as a female name
Ranked #4,205 in 1937
6 female births in 1937
Peak: 1916 (7 births)
Sinnie: Popularity Over Time
SSA records for Sinnie span from the 1880s to the 1930s, covering 5 decades of naming data. The most popular decade for this name was the 1930s, when 11 babies were registered. Sinnie remains highly popular today, with recent registration numbers near its historical peak.
Sinnie by Decade
How has Sinnie 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.
Sinnie + Last Name Combinations
How many people share a full name with Sinnie as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sinnie
Other first names starting with S with a similar number of bearers.
Sinnie: Questions and Answers
How many people in the U.S. are named Sinnie?
We estimate approximately 3 people named Sinnie 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 114,251,446 Americans share this first name.
Is Sinnie a common name?
Sinnie is classified as "Very Rare" and is more popular than 4.9% of all first names in the SSA database. A total of 33 births have been registered with this name since 1880.
When was Sinnie most popular?
Sinnie reached peak popularity in 1916, when 7 babies were given this name. The average age of a living person named Sinnie is approximately 78 years old, reflecting when the name was most commonly given.
Is Sinnie a female name?
Sinnie is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Sinnie Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sinnie Smith, Sinnie Johnson, Sinnie 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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