How old is someone named Mollie?
The average Mollie is 38 years old.
Half of all living Mollies are between 20 and 51.
When was Mollie popular?
Mollie was at its most popular in the mid 1910s. Parents have been moving away from it for decades, and 212 babies were named Mollie in 2025.
Popular names of 1915 · The most popular names of the 1910s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 3,480 | 0 |
| 1910s | 5,789 | 0 |
| 1920s | 4,501 | under 100 |
| 1930s | 2,780 | 570 |
| 1940s | 2,314 | 1,300 |
| 1950s | 2,018 | 1,600 |
| 1960s | 1,459 | 1,300 |
| 1970s | 2,131 | 2,000 |
| 1980s | 3,530 | 3,400 |
| 1990s | 4,659 | 4,600 |
| 2000s | 3,945 | 3,900 |
| 2010s | 3,274 | 3,300 |
| 2020s | 1,250 | 1,200 |
How many Mollies are still alive?
About 23,000 Mollies are alive in the US today. That's 48% of the roughly 48,000 babies named Mollie since 1880.
Roughly half of all Mollies ever born are still living.
What generation is the name Mollie?
About one in four living Mollies are in Gen Z, born between 1997 and 2012.
Is Mollie an old name?
Somewhat. Mollie is older than 63 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Mollie will be 47 in 2056, so the name is aging slowly.
Is Mollie a boy or girl name?
Almost entirely girls: over 99.9% of living Mollies are women.
Names the same age as Mollie
NAME TWIN
Mollie's name twin is Anna. Of all 3,713 names on AgeByName, Anna's age curve is the closest match to Mollie's: 91% alike.
Other spellings: Molly (32)
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Questions about the name Mollie
How old is the average Mollie?
The average Mollie in the US is 38 years old. The median is 34, so half are older and half younger.
How many people are named Mollie?
About 23,000 Mollies are alive in the US today, out of roughly 48,000 babies given the name since 1880.
When was the name Mollie most popular?
In 1915, when about 740 baby girls were named Mollie.
Is Mollie a Gen Z name?
Partly. Gen Z are the largest group, about 28% of living Mollies, 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