How old is someone named Sydney?
The average Sydney is 24 years old.
Half of all living Sydneys are between 18 and 29.
When was Sydney popular?
Sydney rose fast and peaked in 2000, then faded almost as fast. 63% of all Sydneys were born within 15 years of each other.
Popular names of 2000 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 299 | 0 |
| 1910s | 1,706 | 0 |
| 1920s | 1,615 | under 100 |
| 1930s | 1,625 | 290 |
| 1940s | 2,327 | 1,200 |
| 1950s | 2,153 | 1,600 |
| 1960s | 1,850 | 1,600 |
| 1970s | 1,285 | 1,200 |
| 1980s | 5,044 | 4,900 |
| 1990s | 56,774 | 56,000 |
| 2000s | 77,288 | 76,000 |
| 2010s | 28,590 | 28,000 |
| 2020s | 6,809 | 6,800 |
How many Sydneys are still alive?
About 180,000 Sydneys are alive in the US today. That's 95% of the roughly 190,000 babies named Sydney since 1880.
Nearly every Sydney ever born is still alive, because almost all of them are young.
What generation is the name Sydney?
About two in three living Sydneys are in Gen Z, born between 1997 and 2012.
Is Sydney an old name?
Not really. Sydney is younger than 60 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Sydney will be 47 in 2056, so the name is getting older.
Is Sydney a boy or girl name?
Mostly girls: 97.5% of living Sydneys are women.
Names the same age as Sydney
NAME TWIN
Sydney's name twin is Sydnee. Of all 3,713 names on AgeByName, Sydnee's age curve is the closest match to Sydney's: 93% alike.
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Questions about the name Sydney
How old is the average Sydney?
The average Sydney in the US is 24 years old. The median is 24, so half are older and half younger.
How many people are named Sydney?
About 180,000 Sydneys are alive in the US today, out of roughly 190,000 babies given the name since 1880.
When was the name Sydney most popular?
In 2000, when about 10,000 baby girls were named Sydney.
Is Sydney a Gen Z name?
Yes. About 64% of living Sydneys are in Gen Z, born between 1997 and 2012.
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