Feminine dossier · first seen 1911
Cecily
Stable Decline
Gradual decline from 1989
Peak era
1989
Peak births
472
Current vitality
Fragile
Peak generation
Millennial
Quick answers about Cecily
How many people are named Cecily?
An estimated 7,707 living Americans are named Cecily.
How rare is Cecily?
Cecily is uncommon among babies today, with 137 girls receiving the name in 2025, down 71% from its 1989 peak.
How old is the typical Cecily?
The median age of a living American named Cecily is approximately 31 years, with most bearers falling between 13 and 40 years old.
Is Cecily still popular?
Not especially. Cecily has been declining since its 1989 peak and registered 137 births in 2025.
Where is Cecily most common?
Cecily has its strongest geographic signal in California, where it appears 1.7× more often than the national baseline.
1911Peak 19892025
Peak year
1989
Decline from peak
71%
2025
137
All-time
8,673
Where it lives now
Cecily is most concentrated in Illinois — about 1.6× the national rate in the 2010s.
States where Cecily is given more often than the national average — its present-day heartland.