An estimated 39,433 living Americans are named Sienna.
How rare is Sienna?
Sienna is moderately uncommon among babies today, with 2,659 girls receiving the name in 2025, matching its recorded peak.
How old is the typical Sienna?
The median age of a living American named Sienna is approximately 11 years, with most bearers falling between 5 and 18 years old.
Is Sienna still popular?
Yes — Sienna is currently rising in popularity, with 2,659 births in 2025. Births this decade are running about 1.2× higher than the previous decade.
Where is Sienna most common?
Sienna has its strongest geographic signal in Rhode Island, where it appears 3.7× more often than the national baseline.
1960Peak 20252025
Peak year
2025
Decline from peak
0%
2025
2,659
All-time
39,877
Diaspora map
Sienna broke out in Alaska, Arizona, Colorado, Connecticut, Hawaii, Idaho, Massachusetts, Montana, Nevada, New York, Oregon, Utah, and Washington (2005) and became over-represented in 27 states over 18 years.
Broke out: Alaska, Arizona, Colorado, Connecticut, Hawaii, Idaho, Massachusetts, Montana, Nevada, New York, Oregon, Utah, and Washington, 2005 · over-represented in 27 states over 18 years
