Mason Boy
How popular is Mason?
#39 boy name in 2025
6,291 baby boys were named Mason in the US in 2025, making it the 39th most popular boy name. Another 51 girls got the name (#3,130 for girls).
Mason popularity over time
Boys Girls
| Rank in 2025 | #39 for boys (▲ 3 from 2024) |
|---|---|
| Babies in 2025 | 6,291 boys, 51 girls |
| 10-year trend | Falling fast (-62% babies vs 2015) |
| Earlier ranks | #3 in 2015, #11 in 2020 |
| Peak year | 2011 (19,530 boys) |
| Highest rank | #2 in 2011 (2 years at that rank) |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 99% boys, 1% girls |
| Chance a classmate shares it | 4% in a class of 25 kids born in 2025 |
Mason counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Mason family of names ranked #42 for boys in 2025, with 6,677 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Mason | 6,291 | 94% |
| Maison | 151 | 2% |
| Mayson | 98 | 1% |
| Masen | 44 | 1% |
| Masyn | 48 | 1% |
| Maisen | 11 | 0% |
| Masson | 9 | 0% |
| Maizen | 10 | 0% |
| Mayzen | 15 | 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 Mason is most popular
Babies named Mason per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- Vermont: 10.8 per 1,000 (68 boys)
- Wyoming: 9.2 per 1,000 (53 boys)
- Maine: 8.9 per 1,000 (172 boys)
- Rhode Island: 8.8 per 1,000 (144 boys)
- New Hampshire: 8.7 per 1,000 (194 boys)
Mason by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 154 | #363 |
| 1890s | 171 | #392 |
| 1900s | 219 | #393 |
| 1910s | 878 | #465 |
| 1920s | 1,212 | #511 |
| 1930s | 833 | #629 |
| 1940s | 867 | #620 |
| 1950s | 848 | #720 |
| 1960s | 958 | #633 |
| 1970s | 2,296 | #455 |
| 1980s | 5,541 | #235 |
| 1990s | 32,880 | #71 |
| 2000s | 90,502 | #34 |
| 2010s | 157,911 | #2 |
| 2020s | 47,313 | #11 |
Boy names about as popular as Mason
Questions
- Is Mason a boy or girl name?
- Mason is mostly a boy name. Over the last 10 years, 99% of babies named Mason were boys.
- How popular is the name Mason?
- 6,291 baby boys were named Mason in the US in 2025, making it the 39th most popular boy name. Another 51 girls got the name (#3,130 for girls).
- When was Mason most popular?
- Mason peaked in 2011, when 19,530 boys were given the name. Its highest rank was #2, held for 2 years starting in 2011.
- How many people are named Mason?
- 345,931 babies have been named Mason in the US since 1880. We estimate about 337,595 of them are alive in 2026, with a median age of 14.
- Where is Mason most popular?
- From 2021 to 2025, Mason was most common in Vermont, at 10.8 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.