Katilyn
Katilyn is a girl's name that peaked in 1998, when it was the 1,607th most popular in the United States. It has not appeared in the national data since 2019. About 1,700 Katilyns are alive in the United States today, and half of them are over 26.
Popularity, 1880–2025
girls named Katilyn
By the numbers
- Total US births
- 1,738
- Estimated living today
- 1,700
- Median age today
- 26
- Peak year
- 1998
- Best rank
- 1,607th
- Rank in 2025
- unranked
- First recorded
- 1980
How old the living Katilyns are
born that year still alive today
Of the 1,738 babies given the name since 1980, about 1,700 are alive — 98 in every hundred. The dotted line is the median: half were born before 1999 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where Katilyn is most common
Relative to how many babies each state records, Katilyn is most concentrated in Tennessee (5.5×), Kentucky (4.0×), Georgia (3.7×), Ohio (2.6×).
Total births recorded in each state since 1910. Browse names by state.
Names of 1998
The most popular girls’ names the year Katilyn peaked:
Related names
Katilyn against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.