An estimated 98,291 living Americans are named Sierra.
How rare is Sierra?
Sierra is uncommon among babies today, with 476 girls receiving the name in 2025, down 91.9% from its 1998 peak.
How old is the typical Sierra?
The median age of a living American named Sierra is approximately 27 years, with most bearers falling between 22 and 31 years old.
Is Sierra still popular?
No. Sierra is endangered as a baby name, down 91.9% from its 1998 peak with 476 births in 2025.
Where is Sierra most common?
Sierra has its strongest geographic signal in Wyoming, where it appears 4.4× more often than the national baseline.
1940Peak 19982025
Peak year
1998
Decline from peak
91.9%
2025
476
All-time
100,597
Diaspora map
Sierra broke out in Alaska, Delaware, Georgia, Hawaii, Louisiana, Maryland, Missouri, North Carolina, Ohio, South Carolina, and Virginia (1985) and became over-represented in 43 states over 31 years.
Broke out: Alaska, Delaware, Georgia, Hawaii, Louisiana, Maryland, Missouri, North Carolina, Ohio, South Carolina, and Virginia, 1985 · over-represented in 43 states over 31 years
