Masculine dossier · first seen 1952
Lachlan
Stable
Cross-generational persistence
Peak era
2025
Peak births
468
Current vitality
Fragile
Peak generation
Gen Alpha
Quick answers about Lachlan
How many people are named Lachlan?
An estimated 6,041 living Americans are named Lachlan.
How rare is Lachlan?
Lachlan is uncommon among babies today, with 468 boys receiving the name in 2025, matching its recorded peak.
How old is the typical Lachlan?
The median age of a living American named Lachlan is approximately 9 years, with most bearers falling between 4 and 14 years old.
Is Lachlan still popular?
Yes. Lachlan is holding steady, with 468 births in 2025 and a consistent recent baseline.
Where is Lachlan most common?
Lachlan has its strongest geographic signal in Colorado, where it appears 3.0× more often than the national baseline.
1952Peak 20252025
Peak year
2025
Decline from peak
0%
2025
468
All-time
6,108
Where it lives now
Lachlan is most concentrated in Colorado — about 3.0× the national rate in the 2020s. It also runs high in Washington.
States where Lachlan is given more often than the national average — its present-day heartland.