Feminine dossier · first seen 1894
Isobel
Stable
Cross-generational persistence
Peak era
2016
Peak births
129
Current vitality
Rare
Peak generation
Gen Alpha
Quick answers about Isobel
How many people are named Isobel?
An estimated 2,556 living Americans are named Isobel.
How rare is Isobel?
Isobel is uncommon among babies today, with 79 girls receiving the name in 2025, down 38.8% from its 2016 peak.
How old is the typical Isobel?
The median age of a living American named Isobel is approximately 14 years, with most bearers falling between 8 and 22 years old.
Is Isobel still popular?
Yes. Isobel is holding steady, with 79 births in 2025 and a consistent recent baseline.
Where is Isobel most common?
Isobel has its strongest geographic signal in Pennsylvania, where it appears 2.0× more often than the national baseline.
1894Peak 20162025
Peak year
2016
Decline from peak
38.8%
2025
79
All-time
3,802
Where it lives now
Isobel is most concentrated in New York — about 1.6× the national rate in the 2000s.
States where Isobel is given more often than the national average — its present-day heartland.