How old is someone named Mariel?
The average Mariel is 27 years old.
Half of all living Mariels are between 14 and 38.
When was Mariel popular?
Most of the Mariels 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 |
|---|---|---|
| 1910s | 45 | 0 |
| 1920s | 116 | 0 |
| 1930s | 161 | under 100 |
| 1940s | 101 | under 100 |
| 1950s | 79 | under 100 |
| 1960s | 68 | under 100 |
| 1970s | 277 | 260 |
| 1980s | 1,608 | 1,600 |
| 1990s | 1,886 | 1,800 |
| 2000s | 1,277 | 1,300 |
| 2010s | 987 | 980 |
| 2020s | 998 | 990 |
How many Mariels are still alive?
About 7,100 Mariels are alive in the US today. That's 94% of the roughly 7,600 babies named Mariel since 1914.
Nearly every Mariel ever born is still alive, because almost all of them are young.
What generation is the name Mariel?
About two in five living Mariels are Millennials, born between 1981 and 1996.
Is Mariel an old name?
Not really. Mariel is younger than 54 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Mariel will be 34 in 2056, so the name is aging slowly.
Is Mariel a boy or girl name?
Mostly girls: 98.4% of living Mariels are women.
Names the same age as Mariel
NAME TWIN
Mariel's name twin is Kacey. Of all 3,713 names on AgeByName, Kacey's age curve is the closest match to Mariel's: 88% alike.
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Questions about the name Mariel
How old is the average Mariel?
The average Mariel in the US is 27 years old. The median is 29, so half are older and half younger.
How many people are named Mariel?
About 7,100 Mariels are alive in the US today, out of roughly 7,600 babies given the name since 1914.
When was the name Mariel most popular?
In 2025, when about 300 baby girls were named Mariel.
Is Mariel a Millennial name?
Partly. Millennials are the largest group, about 40% of living Mariels, but the name spans several generations.
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