Silas vs Siller
American parents have registered 75,649 Silases since 1880, against 50 Sillers. Silas is still ahead, with 4,646 babies in 2025.
Babies given each name, 1880–2025
Silas Siller
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
Silas has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.
The closest they came was 1901, when Silas had 37 and Siller had 6.
Side by side
| Silas | Siller | |
|---|---|---|
| Total US births | 75,649 | 50 |
| Most in one year | 4,646 | 7 |
| Babies in 2025 | 4,646 | under 5 |
| Estimated living today | 67,000 | 0 |
| Median age today | 8 | 99 |
| Peak year | 2025 | 1892 |
| Best rank | 71st boys | 1,171st girls |
| Rank in 2025 | 71st | unranked |
| First recorded | 1880 | 1892 |
| Girls / boys | 184 / 75,465 | 50 / 0 |
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 Sillers alive today are over 99; half the Silases are over 8. That is 91 years between them: two names in use at the same time, worn by two different generations.
Compare something else
Related comparisons
Social Security Administration birth records, 1880–2025, public domain. Full histories: Silas and Siller.