$
Isa
6,575 recorded births · active 1880–2025
Living-age distribution
The median living Isa is 12. If you meet a Isa, there's about a 70% chance they're between 3 and 37 years old.
Among males: median 11 (2–26). Among females: median 15 (4–50).
Popularity arc
● Comeback KidPopular, faded for decades, then surged back.
Peak Isa: 2025. Down 25% from peak.
Geographic fingerprint
Isas are 0.8x more common in the Northeast than the national average.