Feminine dossier · first seen 1930
Joslyn
Stable Decline
Gradual decline from 2010
Peak era
2010
Peak births
461
Current vitality
Rare
Peak generation
Gen Z
Quick answers about Joslyn
How many people are named Joslyn?
An estimated 10,780 living Americans are named Joslyn.
How rare is Joslyn?
Joslyn is uncommon among babies today, with 63 girls receiving the name in 2025, down 86.3% from its 2010 peak.
How old is the typical Joslyn?
The median age of a living American named Joslyn is approximately 20 years, with most bearers falling between 13 and 30 years old.
Is Joslyn still popular?
Not especially. Joslyn has been declining since its 2010 peak and registered 63 births in 2025.
Where is Joslyn most common?
Joslyn has its strongest geographic signal in Nebraska, where it appears 7.4× more often than the national baseline.
1930Peak 20102025
Peak year
2010
Decline from peak
86.3%
2025
63
All-time
11,227
Where it lives now
Joslyn is most concentrated in Nebraska — about 6.4× the national rate in the 2010s. It also runs high in Michigan.
States where Joslyn is given more often than the national average — its present-day heartland.