Boys' name · peaked in 2011
Mason name popularity since 1925
343,822 babies born in the US from 1925 to 2025 were named Mason (1.0% girls, 99.0% boys). Half of them were born in 2011 or earlier, so the typical Mason is about 15 years old in 2026. Mason peaked in 2011 as the #2 name for boys, and it ranked #39 in 2025.
Key facts
- US babies since 1925
- 343,822
- Named Mason, 1925–2025
- In 2025
- #39
- for boys in 2025 (6,291 babies)
- Girls / boys
- 99.0% boys
- 3,325 girls · 340,497 boys
- Most popular in
- Nevada
- 2.30× its national share
Peak year is the year Mason made up the largest share of US boys, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Mason births per year, 1925–2025
2011 was the biggest year for Mason both by count and as a share of all babies.
- Fastest rise: Between 1983 and 1988, Mason became 4× more common, from 1 in 7,410 baby boys to 1 in 1,870.
- Steepest fall: Between 2019 and 2024, its share of baby boys fell by 41%, from 1 in 156 to 1 in 265.
Shaded on the chart. Both compare Mason's share of all US boys five years apart, counting only years with at least 100 babies named Mason.
Decade by decade
Babies named Mason in each decade, and its rank among boys' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 0 | 548 | – |
| 1930s | 0 | 833 | #661 |
| 1940s | 0 | 867 | #741 |
| 1950s | 0 | 848 | #738 |
| 1960s | 0 | 958 | #863 |
| 1970s | 10 | 2,296 | #460 |
| 1980s | 78 | 5,541 | #396 |
| 1990s | 771 | 32,880 | #102 |
| 2000s | 1,306 | 90,502 | #42 |
| 2010s | 791 | 157,911 | #3 |
| 2020–25 | 369 | 47,313 | #39 |
Ranks count every name given to at least 5 boys that year, so they can go past 1,000.
Generation fingerprint
46.6% of babies named Mason from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Mason is most popular
The index compares Mason's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Mason.
| State | Index | Babies |
|---|---|---|
| Nevada | 2.30× | 2,814 |
| Utah | 1.75× | 5,109 |
| Alaska | 1.63× | 830 |
| Idaho | 1.55× | 2,109 |
| New Hampshire | 1.47× | 1,581 |
Other spellings
Spellings that sound like Mason and were given to at least 1,000 boys from 1925 to 2025, with the year each one was most popular.
| Spelling | Boys | Peak year |
|---|---|---|
| Mason (this page) | 340,497 | 2011 |
| Masen | 3,243 | 2012 |
| Masyn | 1,501 | 2012 |
Names with a similar story
Of the other 499 names on this site, these six had the share of babies closest in shape to Mason's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Mason.
Names from the same era
Other common names that peaked within two years of Mason (2011).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data