1952Peak 20252025
Quick answers about Lachlan
How many people are named Lachlan?
An estimated 6,044 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 appeared 3.0× more often than the national baseline in the 2020s.
Diaspora map
Lachlan spread fast — broke out in Colorado, Minnesota, and Washington (2018) and ran high in 4 states within a decade.
Broke out: Colorado, Minnesota, and Washington, 2018 · over-represented in 4 states over 1 year
Origin
≤5 yrs
≤15 yrs
16+ yrs
No breakout