Feminine dossier · first seen 1906

Jill

Endangered Down 99.7% from peak

Peak era

1966

Peak births

7,871

Current vitality

Rare

Peak generation

Gen X

1906Peak 19662025

Quick answers about Jill

An estimated 180,120 living Americans are named Jill.

Jill is very rare among babies today, with 21 girls receiving the name in 2025, down 99.7% from its 1966 peak.

The median age of a living American named Jill is approximately 58 years, with most bearers falling between 49 and 65 years old.

No. Jill is endangered as a baby name, down 99.7% from its 1966 peak with 21 births in 2025.

Peak year

1966

Decline from peak

99.7%

2025

All-time

208,071

Jill has been in gradual retreat. The last decade averaged 2.9× lower than the decade before it — a slow, steady fade rather than a collapse.

Jill peaked in 1966, when 7,871 girls were given the name.

In 2025, only 21 girls were given the name.

Down 99.7% from its peak.

In all, the Social Security Administration has recorded about 208,071 Americans named Jill since 1906.

Rarity score99th percentile rare

Peak generationGen X

StabilityHighly era-bound

TrajectoryDown 99.7% from peak

19667,871 girls named Jill

202521 girls named Jill

Living profile

180,120

Estimated living Americans with this name.

Median age58

Core range49–65

Playground Density Index 0.0%

Wave type

Steady Decline

A name with a broad middle and a downward recent trajectory.