How old is someone named Marnie?
The average Marnie is 48 years old.
Half of all living Marnies are between 45 and 58.
When was Marnie popular?
Marnie was a boom name: it shot up, peaked in 1969, and dropped away. That's why most Marnies are close to the same age.
Popular names of 1969 · The most popular names of the 1960s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1910s | 19 | 0 |
| 1920s | 16 | 0 |
| 1930s | 31 | under 100 |
| 1940s | 126 | under 100 |
| 1950s | 219 | 170 |
| 1960s | 1,939 | 1,700 |
| 1970s | 2,263 | 2,100 |
| 1980s | 453 | 440 |
| 1990s | 267 | 260 |
| 2000s | 164 | 160 |
| 2010s | 260 | 260 |
| 2020s | 384 | 380 |
How many Marnies are still alive?
About 5,600 Marnies are alive in the US today. That's 91% of the roughly 6,100 babies named Marnie since 1915.
Nearly every Marnie ever born is still alive, because almost all of them are young.
What generation is the name Marnie?
About two in three living Marnies are Gen Xers, born between 1965 and 1980.
Is Marnie an old name?
Yes. Marnie is older than 76 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Marnie will be 50 in 2056, about the same as today.
Is Marnie a boy or girl name?
Almost entirely girls: over 99.9% of living Marnies are women.
Names the same age as Marnie
NAME TWIN
Marnie's name twin is Dionne. Of all 3,713 names on AgeByName, Dionne's age curve is the closest match to Marnie's: 82% alike.
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Questions about the name Marnie
How old is the average Marnie?
The average Marnie in the US is 48 years old. The median is 54, so half are older and half younger.
How many people are named Marnie?
About 5,600 Marnies are alive in the US today, out of roughly 6,100 babies given the name since 1915.
When was the name Marnie most popular?
In 1969, when about 510 baby girls were named Marnie.
Is Marnie a Gen X name?
Yes. About 67% of living Marnies are Gen Xers, born between 1965 and 1980.
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