How Many People Are Named Cynthi?
An estimated 12 people in the United States have the first name Cynthi. It is almost exclusively a female name. The average bearer is 67 years old, and Cynthi peaked in popularity in 1953 with 6 births that year.
Below you will find a full statistical profile of Cynthi 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 Cynthi paired with any surname.
Key Insights
- With an average bearer age of 67, Cynthi is a vintage name most associated with earlier generations. Most living bearers were born before 1969.
- Cynthi is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
12
About 1 in 28,562,862 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
67
years old
Peak Year
1953
6 births
Total Registered
16
since 1880
Gender Distribution for Cynthi
Cynthi is almost exclusively a female name. Out of 16 total births registered, 100.0% were female.
Cynthi as a female name
Ranked #6,750 in 1962
5 female births in 1962
Peak: 1953 (6 births)
Cynthi: Popularity Over Time
SSA records for Cynthi span from the 1950s to the 1960s, covering 2 decades of naming data. The most popular decade for this name was the 1960s, when 10 babies were registered. Cynthi remains highly popular today, with recent registration numbers near its historical peak.
Cynthi by Decade
How has Cynthi 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.
Cynthi + Last Name Combinations
How many people share a full name with Cynthi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cynthi
Other first names starting with C with a similar number of bearers.
Cynthi: Questions and Answers
How many people in the U.S. are named Cynthi?
We estimate approximately 12 people named Cynthi 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 28,562,862 Americans share this first name.
Is Cynthi a common name?
Cynthi is classified as "Very Rare" and is more popular than 32.3% of all first names in the SSA database. A total of 16 births have been registered with this name since 1880.
When was Cynthi most popular?
Cynthi reached peak popularity in 1953, when 6 babies were given this name. The average age of a living person named Cynthi is approximately 67 years old, reflecting when the name was most commonly given.
Is Cynthi a female name?
Cynthi is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cynthi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cynthi Smith, Cynthi Johnson, Cynthi 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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