Masculine dossier · first seen 1914

Iwao

Extinct Near statistical disappearance

Peak era

1921

Peak births

Current vitality

Dormant

Peak generation

Greatest Generation

Quick answers about Iwao

Iwao has not appeared in SSA records since 1936. It is effectively extinct as a new baby name — no boys received it in the latest available data.

The median age of a living American named Iwao is approximately 93 years, with most bearers falling between 90 and 98 years old.

No. Iwao is extinct in new births; the SSA last recorded it in 1936.

Iwao has its strongest geographic signal in Hawaii, where it appears 196.2× more often than the national baseline.

1914Peak 19212025

Peak year

1921

Decline from peak

100%

2025

All-time

178

Iwao disappeared from SSA records in 1936 and has not been seen in 89 years. Its absence is now longer than many names' entire recorded lifespan.

Iwao peaked in 1921, when 20 boys were given the name.

No boys 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 178 Americans named Iwao since 1914.

Rarity scoreStatistical floor

Peak generationGreatest Generation

StabilityHighly era-bound

TrajectoryNear statistical disappearance

Living profile

Estimated living Americans with this name.

Median age97

Core range93–101

Playground Density Index 0.0%

Wave type

Flash Flood

A concentrated generational spike rather than a slow classic.

Geographic heartland

Hawaii

196.2× higher affinity than the national baseline.

Hawaii · 1920s 196.2×