Masculine dossier · first seen 1880
Louis
Stable
Cross-generational persistence
Peak era
1921
Peak births
7,247
Current vitality
Healthy
Peak generation
Greatest Generation
Quick answers about Louis
How many people are named Louis?
An estimated 154,919 living Americans are named Louis.
How rare is Louis?
Louis is moderately uncommon among babies today, with 1,391 boys receiving the name in 2025, down 80.8% from its 1921 peak.
How old is the typical Louis?
The median age of a living American named Louis is approximately 56 years, with most bearers falling between 33 and 70 years old.
Is Louis still popular?
Yes. Louis is holding steady, with 1,391 births in 2025 and a consistent recent baseline.
Where is Louis most common?
Louis has its strongest geographic signal in Minnesota, where it appears 3.3× more often than the national baseline.
1880Peak 19212025
Peak year
1921
Decline from peak
80.8%
2025
1,391
All-time
406,470
Where it lives now
Louis is most concentrated in Minnesota — about 3.3× the national rate in the 2020s.
States where Louis is given more often than the national average — its present-day heartland.