Silas Boy
How popular is Silas?
#71 boy name in 2025
4,639 baby boys were named Silas in the US in 2025, making it the 71st most popular boy name. Another 7 girls got the name (#11,928 for girls).
Silas popularity over time
Boys Girls
| Rank in 2025 | #71 for boys (▲ 10 from 2024) |
|---|---|
| Babies in 2025 | 4,639 boys, 7 girls |
| 10-year trend | Rising (+45% babies vs 2015) |
| Earlier ranks | #128 in 2015, #100 in 2020 |
| Peak year | 2025 (4,639 boys) |
| Highest rank | #71 in 2025 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 3% in a class of 25 kids born in 2025 |
Silas counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Silas family of names ranked #64 for boys in 2025 (#74 the year before), with 5,500 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Silas | 4,639 | 84% |
| Sylas | 717 | 13% |
| Sylus | 66 | 1% |
| Sylis | 63 | 1% |
| Silus | 10 | 0% |
| Syles | 5 | 0% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Silas is most popular
Babies named Silas per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Vermont: 8.9 per 1,000 (56 boys)
- Maine: 7.1 per 1,000 (138 boys)
- Wyoming: 7.1 per 1,000 (41 boys)
- West Virginia: 6.5 per 1,000 (213 boys)
- Montana: 6.5 per 1,000 (114 boys)
Silas by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 775 | #139 |
| 1890s | 631 | #167 |
| 1900s | 509 | #248 |
| 1910s | 1,553 | #310 |
| 1920s | 2,031 | #398 |
| 1930s | 1,482 | #426 |
| 1940s | 1,276 | #508 |
| 1950s | 1,050 | #625 |
| 1960s | 753 | #773 |
| 1970s | 922 | #788 |
| 1980s | 1,175 | #757 |
| 1990s | 1,907 | #623 |
| 2000s | 7,308 | #252 |
| 2010s | 29,629 | #105 |
| 2020s | 24,464 | #71 |
Boy names about as popular as Silas
Questions
- Is Silas a boy or girl name?
- Silas is mostly a boy name. Over the last 10 years, 100% of babies named Silas were boys.
- How popular is the name Silas?
- 4,639 baby boys were named Silas in the US in 2025, making it the 71st most popular boy name. Another 7 girls got the name (#11,928 for girls).
- When was Silas most popular?
- Silas peaked in 2025, when 4,639 boys were given the name. Its highest rank was #71 in 2025.
- How many people are named Silas?
- 75,649 babies have been named Silas in the US since 1880. We estimate about 67,229 of them are alive in 2026, with a median age of 9.
- Where is Silas most popular?
- From 2021 to 2025, Silas was most common in Vermont, at 8.9 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.