Feminine dossier · first seen 1964

Kourtney

Endangered Down 95.2% from peak

Peak era

1990

Peak births

646

Current vitality

Rare

Peak generation

Millennial

1964Peak 19902025

Quick answers about Kourtney

How many people are named Kourtney?

An estimated 13,690 living Americans are named Kourtney.

How rare is Kourtney?

Kourtney is very rare among babies today, with 31 girls receiving the name in 2025, down 95.2% from its 1990 peak.

How old is the typical Kourtney?

The median age of a living American named Kourtney is approximately 30 years, with most bearers falling between 19 and 36 years old.

Is Kourtney still popular?

No. Kourtney is endangered as a baby name, down 95.2% from its 1990 peak with 31 births in 2025.

Peak year

1990

Decline from peak

95.2%

2025

All-time

13,925

Diaspora map

Kourtney broke out in Louisiana and Texas (1988) and became over-represented in 14 states over 23 years.

Broke out: Louisiana and Texas, 1988 · over-represented in 14 states over 23 years

Kourtney has been in gradual retreat. The last decade averaged 3.7× lower than the decade before it — a slow, steady fade rather than a collapse.

Kourtney peaked in 1990, when 646 girls were given the name.

In 2025, only 31 girls were given the name.

Down 95.2% from its peak.

In all, the Social Security Administration has recorded about 13,925 Americans named Kourtney since 1964.

Rarity score99th percentile rare

Peak generationMillennial

StabilityHighly era-bound

TrajectoryDown 95.2% from peak

1990646 girls named Kourtney

202531 girls named Kourtney

Living profile

13,690

Estimated living Americans with this name.

Median age30

Core range19–36

Playground Density Index 0.1%

Wave type

Steady Decline

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