How old is someone named Louisa?
The average Louisa is 34 years old.
Half of all living Louisas are between 9 and 58. The average sits between a large young group and an older one, so many Louisas are much younger than 34.
When was Louisa popular?
Louisa has never really gone out of style. Parents have chosen it every year for more than a century; its busiest year was 2021.
Popular names of 2021 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 993 | 0 |
| 1910s | 1,619 | 0 |
| 1920s | 1,770 | under 100 |
| 1930s | 1,227 | 250 |
| 1940s | 1,284 | 730 |
| 1950s | 1,442 | 1,100 |
| 1960s | 1,371 | 1,200 |
| 1970s | 1,005 | 940 |
| 1980s | 1,072 | 1,000 |
| 1990s | 1,084 | 1,100 |
| 2000s | 1,154 | 1,100 |
| 2010s | 2,939 | 2,900 |
| 2020s | 2,285 | 2,300 |
How many Louisas are still alive?
About 13,000 Louisas are alive in the US today. That's 58% of the roughly 22,000 babies named Louisa since 1880.
Roughly half of all Louisas ever born are still living.
What generation is the name Louisa?
About one in three living Louisas are in Gen Alpha, born in 2013 or later.
Is Louisa an old name?
Somewhat. Louisa is older than 57 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 Louisa will be 31 in 2056, about the same as today.
Is Louisa a boy or girl name?
Almost entirely girls: over 99.9% of living Louisas are women.
Names the same age as Louisa
NAME TWIN
Louisa's name twin is Royce. Of all 3,713 names on AgeByName, Royce's age curve is the closest match to Louisa's: 93% alike.
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Questions about the name Louisa
How old is the average Louisa?
The average Louisa in the US is 34 years old. The median is 27, so half are older and half younger.
How many people are named Louisa?
About 13,000 Louisas are alive in the US today, out of roughly 22,000 babies given the name since 1880.
When was the name Louisa most popular?
In 2021, when about 420 baby girls were named Louisa.
Is Louisa a Gen Alpha name?
Partly. Gen Alpha are the largest group, about 36% of living Louisas, 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