Girls' name · peaked in 2009
Kaylin name popularity since 1925
19,934 babies born in the US from 1925 to 2025 were named Kaylin (96.9% girls, 3.1% boys). Half of them were born in 2005 or earlier, so the typical Kaylin is about 21 years old in 2026. Kaylin peaked in 2009 as the #371 name for girls, and it was outside the top 1,000 in 2025.
Key facts
- US babies since 1925
- 19,934
- Named Kaylin, 1925–2025
- In 2025
- Not top 1,000
- #1,644 for girls in 2025
- Girls / boys
- 96.9% girls
- 19,307 girls · 627 boys
- Most popular in
- Florida
- 1.76× its national share
Peak year is the year Kaylin made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Kaylin births per year, 1925–2025
The biggest year by count was 2008. Measured as a share of all babies, Kaylin peaked in 2009.
- Fastest rise: Between 1986 and 1991, Kaylin became 2.7× more common, from 1 in 16,800 baby girls to 1 in 6,230.
- Steepest fall: Between 2012 and 2017, its share of baby girls fell by 57%, from 1 in 2,640 to 1 in 6,100.
Shaded on the chart. Both compare Kaylin's share of all US girls five years apart, counting only years with at least 100 babies named Kaylin.
Decade by decade
Babies named Kaylin in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 0 | 0 | – |
| 1930s | 0 | 0 | Under 5 |
| 1940s | 0 | 0 | Under 5 |
| 1950s | 11 | 0 | Under 5 |
| 1960s | 65 | 0 | #4,340 |
| 1970s | 69 | 0 | #7,517 |
| 1980s | 1,004 | 28 | #1,404 |
| 1990s | 4,616 | 187 | #468 |
| 2000s | 7,373 | 187 | #416 |
| 2010s | 5,128 | 159 | #620 |
| 2020–25 | 1,041 | 66 | #1,644 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000. "Under 5" means fewer than 5 girls got the name.
Generation fingerprint
58.8% of babies named Kaylin from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Kaylin is most popular
The index compares Kaylin's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Kaylin.
| State | Index | Babies |
|---|---|---|
| Florida | 1.76× | 1,110 |
| Georgia | 1.65× | 795 |
| Louisiana | 1.49× | 465 |
| Maryland | 1.43× | 381 |
| South Carolina | 1.35× | 330 |
Other spellings
Spellings that sound like Kaylin and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Kaylin (this page) | 19,307 | 2009 |
| Kaylyn | 12,053 | 1997 |
| Kaylen | 7,150 | 2009 |
| Kaylan | 4,402 | 1997 |
| Caylin | 2,471 | 2009 |
| Kailin | 1,221 | 1997 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Kaylin's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Kaylin.
Names from the same era
Other common names that peaked within two years of Kaylin (2009).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data