Feminine dossier · first seen 1985
Lillianna
Stable Decline
Gradual decline from 2011
Peak era
2011
Peak births
403
Current vitality
Fragile
Peak generation
Gen Z
Quick answers about Lillianna
How many people are named Lillianna?
An estimated 6,510 living Americans are named Lillianna.
How rare is Lillianna?
Lillianna is uncommon among babies today, with 163 girls receiving the name in 2025, down 59.6% from its 2011 peak.
How old is the typical Lillianna?
The median age of a living American named Lillianna is approximately 13 years, with most bearers falling between 9 and 18 years old.
Is Lillianna still popular?
Not especially. Lillianna has been declining since its 2011 peak and registered 163 births in 2025.
Where is Lillianna most common?
Lillianna has its strongest geographic signal in Colorado, where it appears 2.2× more often than the national baseline.
1985Peak 20112025
Peak year
2011
Decline from peak
59.6%
2025
163
All-time
6,583
Where it lives now
Lillianna is most concentrated in Colorado — about 2.2× the national rate in the 2010s. It also runs high in Michigan.
States where Lillianna is given more often than the national average — its present-day heartland.