Compare two names
Janson and Jansen side by side: Janson peaked in 2016 and Jansen in 1994; in 2025 they were given to 17 and 34 babies.
Janson and Jansen, year by year
Girls and boys together; Janson solid, Jansen dashed.
| Janson | Jansen | |
|---|---|---|
| Births 2025 | 17 | 34 |
| Rank 2025 | #5,485 among boys’ names | #3,403 among boys’ names |
| Recorded since 1880 | 1,170 | 2,338 |
| Peak year | 2016 | 1994 |
| Girls | 0% | 9% |
| Alive, estimated | 1,130 | 2,270 |
| Median age | 26 | 25 |
Both names: SSA national file, published May 8, 2026, and SSA’s cohort life tables.