How Many People Are Named Cydne?
An estimated 184 people in the United States have the first name Cydne. It is almost exclusively a female name. The average bearer is 41 years old, and Cydne peaked in popularity in 1997 with 11 births that year.
Below you will find a full statistical profile of Cydne 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 Cydne paired with any surname.
Estimated Living Americans
184
About 1 in 1,862,795 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
41
years old
Peak Year
1997
11 births
Total Registered
210
since 1880
Gender Distribution for Cydne
Cydne is almost exclusively a female name. Out of 210 total births registered, 100.0% were female.
Cydne as a female name
Ranked #13,922 in 2006
7 female births in 2006
Peak: 1997 (11 births)
Cydne: Popularity Over Time
SSA records for Cydne span from the 1940s to the 2000s, covering 6 decades of naming data. The most popular decade for this name was the 1990s, when 71 babies were registered. While Cydne is less common than at its peak in the 1990s, it remains a well-established name with steady registrations.
Cydne by Decade
How has Cydne 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.
Cydne + Last Name Combinations
How many people share a full name with Cydne as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cydne
Other first names starting with C with a similar number of bearers.
Cydne: Questions and Answers
How many people in the U.S. are named Cydne?
We estimate approximately 184 people named Cydne 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 1,862,795 Americans share this first name.
Is Cydne a common name?
Cydne is classified as "Very Rare" and is more popular than 73.1% of all first names in the SSA database. A total of 210 births have been registered with this name since 1880.
When was Cydne most popular?
Cydne reached peak popularity in 1997, when 11 babies were given this name. The average age of a living person named Cydne is approximately 41 years old, reflecting when the name was most commonly given.
Is Cydne a female name?
Cydne is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cydne Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cydne Smith, Cydne Johnson, Cydne 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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