Compare two names
Siera and Sierra side by side: Siera peaked in 1998 and Sierra in 1998; in 2025 they were given to 7 and 476 babies.
Siera and Sierra, year by year
Girls and boys together; Siera solid, Sierra dashed.
| Siera | Sierra | |
|---|---|---|
| Births 2025 | 7 | 476 |
| Rank 2025 | #12,986 among girls’ names | #616 among girls’ names |
| Recorded since 1880 | 2,543 | 100,866 |
| Peak year | 1998 | 1998 |
| Girls | 100% | 99.7% |
| Alive, estimated | 2,500 | 99,200 |
| Median age | 29 | 27 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.