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Sienna vs Sierra

American parents have registered 100,866 Sierras since 1880, against 39,887 Siennas. But in 2025 it was Sienna that was commoner, 2,659 babies to 476.

Babies given each name, 1880–2025

Births per year: Sienna against Sierra, 1880 to 2025 0 1.5k 3k 4.5k 6k 1880 1900 1920 1940 1960 1980 2000 2020

Sienna Sierra

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 83 years in which either name was published, Sierra for 66 years and Sienna for 17 years. The lead changed hands 3 times.

Side by side

  Sienna Sierra
Total US births 39,887100,866
Most in one year 2,6595,853
Babies in 2025 2,659476
Estimated living today 40,00099,000
Median age today 1026
Peak year 20251998
Best rank 94th girls51st girls
Rank in 2025 94th614th
First recorded 19601940
Girls / boys 39,877 / 10100,597 / 269

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Sierras alive today are over 26; half the Siennas are over 10. That is 16 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Sienna Sierra
England and Wales 33,948531
France 2,175120
Scotland 1,66445
Ireland 1,54346
Northern Ireland 80830
Switzerland 75623

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Sienna and Sierra.