How Many People Are Named Cosette?
An estimated 2,731 people in the United States have the first name Cosette. It is almost exclusively a female name. The average bearer is 20 years old, and Cosette peaked in popularity in 2015 with 141 births that year.
Below you will find a full statistical profile of Cosette 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 Cosette paired with any surname.
Estimated Living Americans
2,731
About 1 in 125,505 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
20
years old
Peak Year
2015
141 births
Total Registered
2,964
since 1880
Gender Distribution for Cosette
Cosette is almost exclusively a female name. Out of 2,964 total births registered, 100.0% were female.
Cosette as a female name
Ranked #1,909 in 2024
104 female births in 2024
Peak: 2015 (141 births)
Cosette: Popularity Over Time
SSA records for Cosette span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 2010s, when 1,035 babies were registered. While Cosette is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Cosette by Decade
How has Cosette 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.
Cosette by State
Birth registrations for Cosette span all 21 states and territories in the SSA database. The highest counts are in California, Utah, Texas. The lowest are in Virginia, Tennessee, Ohio. On average, about 55 Cosettes were registered per state.
Cosette + Last Name Combinations
How many people share a full name with Cosette as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cosette
Other first names starting with C with a similar number of bearers.
Cosette: Questions and Answers
How many people in the U.S. are named Cosette?
We estimate approximately 2,731 people named Cosette 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 125,505 Americans share this first name.
Is Cosette a common name?
Cosette is classified as "Rare" and is more popular than 94.9% of all first names in the SSA database. A total of 2,964 births have been registered with this name since 1880.
When was Cosette most popular?
Cosette reached peak popularity in 2015, when 141 babies were given this name. The average age of a living person named Cosette is approximately 20 years old, reflecting when the name was most commonly given.
Is Cosette a female name?
Cosette is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cosette Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cosette Smith, Cosette Johnson, Cosette 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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