Masculine dossier · first seen 1976
Sincere
Stable
Cross-generational persistence
Peak era
2022
Peak births
545
Current vitality
Fragile
Peak generation
Gen Alpha
Quick answers about Sincere
How many people are named Sincere?
An estimated 9,988 living Americans are named Sincere.
How rare is Sincere?
Sincere is uncommon among babies today, with 445 boys receiving the name in 2025, down 18.3% from its 2022 peak.
How old is the typical Sincere?
The median age of a living American named Sincere is approximately 11 years, with most bearers falling between 6 and 18 years old.
Is Sincere still popular?
Yes. Sincere is holding steady, with 445 births in 2025 and a consistent recent baseline.
Where is Sincere most common?
Sincere has its strongest geographic signal in District of Columbia, where it appears 7.7× more often than the national baseline.
1976Peak 20222025
Peak year
2022
Decline from peak
18.3%
2025
445
All-time
10,095
Where it lives now
Sincere is most concentrated in District of Columbia — about 7.7× the national rate in the 2010s. It also runs high in South Carolina.
States where Sincere is given more often than the national average — its present-day heartland.