How old is someone named Erin?
The average Erin is 39 years old.
Half of all living Erins are between 32 and 47.
When was Erin popular?
Erin had one big moment, peaking in 1983. 52% of the babies ever named Erin arrived in a single 15-year stretch.
Popular names of 1983 · The most popular names of the 1980s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 80 | 0 |
| 1910s | 221 | 0 |
| 1920s | 201 | 0 |
| 1930s | 210 | under 100 |
| 1940s | 587 | 340 |
| 1950s | 4,591 | 3,700 |
| 1960s | 16,518 | 15,000 |
| 1970s | 70,769 | 67,000 |
| 1980s | 118,013 | 110,000 |
| 1990s | 66,970 | 66,000 |
| 2000s | 34,196 | 34,000 |
| 2010s | 10,779 | 11,000 |
| 2020s | 2,855 | 2,800 |
How many Erins are still alive?
About 310,000 Erins are alive in the US today. That's 96% of the roughly 330,000 babies named Erin since 1888.
Nearly every Erin ever born is still alive, because almost all of them are young.
What generation is the name Erin?
About half of living Erins are Millennials, born between 1981 and 1996.
- Boomer 3%
- Gen X 29%
- Millennial 48%
- Gen Z 18%
- Gen Alpha 3%
Is Erin an old name?
Somewhat. Erin is older than 66 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Erin will be 65 in 2056, so the name is aging fast.
Is Erin a boy or girl name?
Mostly girls: 97.2% of living Erins are women.
Names the same age as Erin
NAME TWIN
Erin's name twin is Kristal. Of all 3,713 names on AgeByName, Kristal's age curve is the closest match to Erin's: 92% alike.
Other spellings: Eryn (27)
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Questions about the name Erin
How old is the average Erin?
The average Erin in the US is 39 years old. The median is 41, so half are older and half younger.
How many people are named Erin?
About 310,000 Erins are alive in the US today, out of roughly 330,000 babies given the name since 1888.
When was the name Erin most popular?
In 1983, when about 15,000 baby girls were named Erin.
Is Erin a Millennial name?
Partly. Millennials are the largest group, about 48% of living Erins, but the name spans several generations.
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