How old is someone named Cynthia?
The average Cynthia is 60 years old.
Half of all living Cynthias are between 55 and 70.
When was Cynthia popular?
Cynthia was a boom name: it shot up, peaked in 1957, and dropped away. That's why most Cynthias are close to the same age.
Popular names of 1957 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 694 | 0 |
| 1910s | 1,911 | 0 |
| 1920s | 3,661 | under 100 |
| 1930s | 9,695 | 2,400 |
| 1940s | 58,207 | 36,000 |
| 1950s | 263,892 | 210,000 |
| 1960s | 197,150 | 170,000 |
| 1970s | 80,529 | 75,000 |
| 1980s | 41,935 | 40,000 |
| 1990s | 31,471 | 31,000 |
| 2000s | 15,183 | 15,000 |
| 2010s | 5,946 | 5,900 |
| 2020s | 1,855 | 1,800 |
How many Cynthias are still alive?
About 590,000 Cynthias are alive in the US today. That's 82% of the roughly 710,000 babies named Cynthia since 1880.
Most Cynthias ever born are still alive.
What generation is the name Cynthia?
More than half of living Cynthias are Baby Boomers, born between 1946 and 1964.
Is Cynthia an old name?
Yes. Cynthia is older than 90 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Cynthia will be 75 in 2056, so the name is getting older.
Is Cynthia a boy or girl name?
Almost entirely girls: 99.7% of living Cynthias are women.
Names the same age as Cynthia
NAME TWIN
Cynthia's name twin is Terry. Of all 3,713 names on AgeByName, Terry's age curve is the closest match to Cynthia's: 92% alike.
Other spellings: Cinthia (36)
Compare: Cynthia vs. Cindy
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Questions about the name Cynthia
How old is the average Cynthia?
The average Cynthia in the US is 60 years old. The median is 64, so half are older and half younger.
How many people are named Cynthia?
About 590,000 Cynthias are alive in the US today, out of roughly 710,000 babies given the name since 1880.
When was the name Cynthia most popular?
In 1957, when about 39,000 baby girls were named Cynthia.
Is Cynthia a Boomer name?
Yes. About 57% of living Cynthias are Baby Boomers, born between 1946 and 1964.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this