How Many People Are Named Sincere?
An estimated 10,967 people in the United States have the first name Sincere. It is used for both genders, with 87.1% male. The average bearer is 13 years old, and Sincere peaked in popularity in 2022 with 582 births that year.
Below you will find a full statistical profile of Sincere 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 Sincere paired with any surname.
Key Insights
- Sincere 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
10,967
About 1 in 31,253 people in the U.S.
Rarity
Uncommon
Predicted Gender
Male
87.1% confidence
Average Age
13
years old
Peak Year
2022
582 births
Total Registered
11,069
since 1880
Gender Distribution for Sincere
Sincere is predominantly male (87.1%), though 1,427 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Sincere as a male name
Ranked #604 in 2024
471 male births in 2024
Peak: 2022 (545 births)
Sincere as a female name
Ranked #4,176 in 2024
35 female births in 2024
Peak: 2009 (91 births)
Sincere: Popularity Over Time
SSA records for Sincere span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2010s, when 4,711 babies were registered. While Sincere is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Sincere by Decade
How has Sincere 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.
Sincere by State
Birth registrations for Sincere span all 32 states and territories in the SSA database. The highest counts are in New York, Pennsylvania, North Carolina. The lowest are in Kansas, Kentucky, Mississippi. On average, about 279 Sinceres were registered per state.
Sincere + Last Name Combinations
How many people share a full name with Sincere as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Sincere
Other first names starting with S with a similar number of bearers.
Sincere: Questions and Answers
How many people in the U.S. are named Sincere?
We estimate approximately 10,967 people named Sincere 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 31,253 Americans share this first name.
Is Sincere a common name?
Sincere is classified as "Uncommon" and is more popular than 97.8% of all first names in the SSA database. A total of 11,069 births have been registered with this name since 1880.
When was Sincere most popular?
Sincere reached peak popularity in 2022, when 582 babies were given this name. The average age of a living person named Sincere is approximately 13 years old, reflecting when the name was most commonly given.
Is Sincere a male name?
Sincere is predominantly male. 87.1% of people with this name are male. See the gender breakdown above for full details.
How many Sincere Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Sincere Smith, Sincere Johnson, Sincere 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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