Feminine dossier · first seen 1980

Katilyn

Stable Decline Gradual decline from 1998

Peak era

1998

Peak births

101

Current vitality

Below reporting floor

Peak generation

Gen Z

Quick answers about Katilyn

An estimated 1,700 living Americans are named Katilyn.

Katilyn fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.

The median age of a living American named Katilyn is approximately 27 years, with most bearers falling between 22 and 32 years old.

Not especially. Katilyn has been declining since its 1998 peak and registered 0 births in 2025.

1980Peak 19982025

Peak year

1998

Decline from peak

100%

2025

All-time

1,738

Katilyn last appeared in SSA records in 2019. Across its recorded history, about 1,738 American girls received the name.

Katilyn peaked in 1998, when 101 girls were given the name.

No girls were recorded with this name in 2025 — at least not five of them (the SSA's reporting floor).

Down 100% from its peak.

In all, the Social Security Administration has recorded about 1,738 Americans named Katilyn since 1980.

Rarity scoreStatistical floor

Peak generationGen Z

StabilityHighly era-bound

TrajectoryGradual decline from 1998

Living profile

1,714

Estimated living Americans with this name.

Median age27

Core range22–32

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.