Compare two names
Isadore and Isidore side by side: Isadore peaked in 1916 and Isidore in 1919; in 2025 they were given to 15 and 31 babies.
Isadore and Isidore, year by year
Girls and boys together; Isadore solid, Isidore dashed.
| Isadore | Isidore | |
|---|---|---|
| Births 2025 | 15 | 31 |
| Rank 2025 | #5,960 among boys’ names | #3,606 among boys’ names |
| Recorded since 1880 | 5,909 | 3,421 |
| Peak year | 1916 | 1919 |
| Girls | 3% | 0% |
| Alive, estimated | 1,090 | 656 |
| Median age | 53 | 23 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.