Feminine dossier · first seen 1880
Lou
Endangered
Down 95.7% from peak
Peak era
1954
Peak births
1,495
Current vitality
Rare
Peak generation
Boomer
1880Peak 19542025
Quick answers about Lou
How many people are named Lou?
An estimated 14,965 living Americans are named Lou.
How rare is Lou?
Lou is uncommon among babies today, with 65 girls receiving the name in 2025, down 95.7% from its 1954 peak.
How old is the typical Lou?
The median age of a living American named Lou is approximately 71 years, with most bearers falling between 65 and 77 years old.
Is Lou still popular?
No. Lou is endangered as a baby name, down 95.7% from its 1954 peak with 65 births in 2025.
Peak year
1954
Decline from peak
95.7%
2025
65
All-time
34,109