How old is someone named Mathias?
The average Mathias is 13 years old.
Half of all living Mathiases are between 4 and 18.
When was Mathias popular?
Most of the Mathiases in the country were born in the last 15 years. The name peaked in 2025 and is still near the top.
Popular names of 2025 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 62 | 0 |
| 1910s | 291 | 0 |
| 1920s | 310 | 0 |
| 1930s | 197 | under 100 |
| 1940s | 139 | under 100 |
| 1950s | 148 | under 100 |
| 1960s | 161 | 130 |
| 1970s | 311 | 280 |
| 1980s | 469 | 440 |
| 1990s | 701 | 680 |
| 2000s | 2,147 | 2,100 |
| 2010s | 5,176 | 5,100 |
| 2020s | 5,196 | 5,200 |
How many Mathiases are still alive?
About 14,000 Mathiases are alive in the US today. That's 91% of the roughly 16,000 babies named Mathias since 1880.
Nearly every Mathias ever born is still alive, because almost all of them are young.
What generation is the name Mathias?
About two in three living Mathiases are in Gen Alpha, born in 2013 or later.
- Boomer 1%
- Gen X 3%
- Millennial 6%
- Gen Z 24%
- Gen Alpha 66%
Is Mathias an old name?
No. Mathias is one of the youngest names around: younger than 87 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Mathias will be 24 in 2056, so the name is aging slowly.
Is Mathias a boy or girl name?
Almost entirely boys: over 99.9% of living Mathiases are men.
Names the same age as Mathias
NAME TWIN
Mathias's name twin is Santiago. Of all 3,713 names on AgeByName, Santiago's age curve is the closest match to Mathias's: 94% alike.
Other spellings: Matthias (14)
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Questions about the name Mathias
How old is the average Mathias?
The average Mathias in the US is 13 years old. The median is 9, so half are older and half younger.
How many people are named Mathias?
About 14,000 Mathiases are alive in the US today, out of roughly 16,000 babies given the name since 1880.
When was the name Mathias most popular?
In 2025, when about 1,100 baby boys were named Mathias.
Is Mathias a Gen Alpha name?
Yes. About 66% of living Mathiases are in Gen Alpha, born in 2013 or later.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this