1944Peak 19822025
Quick answers about Jillian
How many people are named Jillian?
An estimated 81,555 living Americans are named Jillian.
How rare is Jillian?
Jillian is uncommon among babies today, with 177 girls receiving the name in 2025, down 94.2% from its 1982 peak.
How old is the typical Jillian?
The median age of a living American named Jillian is approximately 31 years, with most bearers falling between 22 and 40 years old.
Is Jillian still popular?
No. Jillian is endangered as a baby name, down 94.2% from its 1982 peak with 177 births in 2025.
Diaspora map
Jillian broke out in Connecticut, Massachusetts, Minnesota, and New York (1977) and became over-represented in 24 states over 35 years.
Broke out: Connecticut, Massachusetts, Minnesota, and New York, 1977 · over-represented in 24 states over 35 years
Origin
≤5 yrs
≤15 yrs
16+ yrs
No breakout
