Girls' name · peaked in 1998
Katelynn name popularity since 1925
30,691 babies born in the US from 1925 to 2025 were named Katelynn. Half of them were born in 2001 or earlier, so the typical Katelynn is about 25 years old in 2026. Katelynn peaked in 1998 as the #210 name for girls, and it was outside the top 1,000 in 2025.
Key facts
- US babies since 1925
- 30,691
- Named Katelynn, 1925–2025
- In 2025
- Not top 1,000
- #2,736 for girls in 2025
- Girls / boys
- 100.0% girls
- 30,680 girls · 11 boys
- Most popular in
- Utah
- 1.81× its national share
Peak year is the year Katelynn 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.
Katelynn births per year, 1925–2025
1998 was the biggest year for Katelynn both by count and as a share of all babies.
- Fastest rise: Between 1985 and 1990, Katelynn became 5.9× more common, from 1 in 16,200 baby girls to 1 in 2,730.
- Steepest fall: Between 2012 and 2017, its share of baby girls fell by 74%, from 1 in 2,390 to 1 in 9,180.
Shaded on the chart. Both compare Katelynn's share of all US girls five years apart, counting only years with at least 100 babies named Katelynn.
Decade by decade
Babies named Katelynn 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 | 0 | 0 | Under 5 |
| 1960s | 0 | 0 | Under 5 |
| 1970s | 5 | 0 | Under 5 |
| 1980s | 1,624 | 6 | #1,272 |
| 1990s | 11,306 | 5 | #228 |
| 2000s | 12,199 | 0 | #294 |
| 2010s | 5,013 | 0 | #652 |
| 2020–25 | 533 | 0 | #2,736 |
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
61.6% of babies named Katelynn from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Katelynn is most popular
The index compares Katelynn'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 Katelynn.
| State | Index | Babies |
|---|---|---|
| Utah | 1.81× | 458 |
| Oklahoma | 1.79× | 693 |
| Oregon | 1.73× | 481 |
| Arkansas | 1.48× | 450 |
| Indiana | 1.43× | 1,004 |
Other spellings
Spellings that sound like Katelynn 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 |
|---|---|---|
| Katelynn (this page) | 30,680 | 1998 |
| Katelyn | 134,049 | 1993 |
| Katelynne | 1,343 | 1993 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Katelynn's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Katelynn.
Names from the same era
Other common names that peaked within two years of Katelynn (1998).
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