Erin Girl
How popular is Erin?
#833 girl name in 2025
327 baby girls were named Erin in the US in 2025, making it the 833rd most popular girl name. Another 22 boys got the name (#4,538 for boys).
Erin popularity over time
Boys Girls
| Rank in 2025 | #833 for girls (▼ 35 from 2024) |
|---|---|
| Babies in 2025 | 327 girls, 22 boys |
| 10-year trend | Falling fast (-66% babies vs 2015) |
| Earlier ranks | #335 in 2015, #521 in 2020 |
| Peak year | 1983 (14,836 girls) |
| Highest rank | #18 in 1983 |
| First recorded | 1888 |
| Boys vs girls (last 10 years) | 6% boys, 94% girls |
| Chance a classmate shares it | 0.3% in a class of 25 kids born in 2025 |
Erin counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Erin family of names ranked #687 for girls in 2025 (#630 the year before), with 390 babies in all.
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Erin is most popular
Babies named Erin per 1,000 girls born in each state, 2021 to 2025. Darker means more common.
- South Carolina: 0.5 per 1,000 (44 girls)
- Massachusetts: 0.4 per 1,000 (52 girls)
- Louisiana: 0.4 per 1,000 (35 girls)
- Georgia: 0.4 per 1,000 (89 girls)
- Arkansas: 0.4 per 1,000 (20 girls)
Erin by decade
| Decade | Baby girls | Best rank |
|---|---|---|
| 1880s | 11 | #1,146 |
| 1890s | 52 | #940 |
| 1900s | 80 | #1,052 |
| 1910s | 209 | #1,274 |
| 1920s | 183 | #1,350 |
| 1930s | 198 | #1,231 |
| 1940s | 536 | #978 |
| 1950s | 4,382 | #248 |
| 1960s | 15,570 | #114 |
| 1970s | 67,888 | #21 |
| 1980s | 115,811 | #18 |
| 1990s | 65,335 | #43 |
| 2000s | 33,370 | #60 |
| 2010s | 10,285 | #216 |
| 2020s | 2,665 | #521 |
Girl names about as popular as Erin
Questions
- Is Erin a boy or girl name?
- Erin is mostly a girl name. Over the last 10 years, 94% of babies named Erin were girls.
- How popular is the name Erin?
- 327 baby girls were named Erin in the US in 2025, making it the 833rd most popular girl name. Another 22 boys got the name (#4,538 for boys).
- When was Erin most popular?
- Erin peaked in 1983, when 14,836 girls were given the name. Its highest rank was #18 in 1983.
- How many people are named Erin?
- 326,053 babies have been named Erin in the US since 1880. We estimate about 314,098 of them are alive in 2026, with a median age of 41.
- Where is Erin most popular?
- From 2021 to 2025, Erin was most common in South Carolina, at 0.5 of every 1,000 girls born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.