Louisa
Louisa reached its high-water mark in 2021 at number 685, and has been recorded 21,937 times in all. In 2025 it ranked 694th. About 13,000 Louisas are alive in the United States today, and half of them are over 26.
Popularity, 1880–2025
girls named Louisa boys named Louisa
By the numbers
- Total US births
- 21,937
- Estimated living today
- 13,000
- Median age today
- 26
- Peak year
- 2021
- Best rank
- 685th
- Rank in 2025
- 694th
- First recorded
- 1880
- Girls / boys
- 21,932 / 5
How old the living Louisas are
born that year still alive today
Of the 21,937 babies given the name since 1880, about 13,000 are alive — 58 in every hundred. Roughly 5,500 of them are children and 2,400 are 65 or over. The dotted line is the median: half were born before 1999 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Where the name comes from
Origin Germanic languages
Etymology from Wiktionary, used under CC BY-SA 4.0.
Notable Louisas
- Louisa May Alcott (1832–1888)American novelist
- Louisa Adams (1775–1852)First Lady of the United States from 1825 to 1829
- Louisa Ulrika of Prussia (1720–1782)Swedish queen
- Louisa Necib Cadamuro (born 1987)French footballer
- Louisa Hanoune (born 1954)Algerian politician
- Harriet Margaret Louisa Bolus (1877–1970)South African botanist, botanical collector, and curator and scientific illustrator
- Louisa Maria Stuart (1692–1712)British princess
- Louisa Chirico (born 1996)US American female tennis player
People named Louisa with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Louisa is most common
Relative to how many babies each state records, Louisa is most concentrated in New Mexico (4.1×), Massachusetts (2.4×), New York (2.1×), Texas (1.6×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2021
The most popular girls’ names the year Louisa peaked:
Louisa elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| France girls | Louisa +1 spelling | 20,615 | 109th |
| England and Wales girls | Louisa | 4,955 | 201st |
| Switzerland girls | Louisa | 1,195 | 75th |
| Belgium girls | Louisa | 1,162 | 144th |
| Scotland girls | Louisa | 1,101 | 111th |
| Ireland girls | Louisa | 447 | 236th |
| Northern Ireland girls | Louisa | 108 | 166th |
| Norway girls | Louisa | 37 | 237th |
| Poland girls | Louisa | 37 birth registrations | 400th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Louisa: births by region
| Region | Country | Spelling | Births | Share of the region | Best rank |
|---|---|---|---|---|---|
| German girls | Switzerland | Louisa | 1,058 | 0.085% | 60th |
| French girls | Switzerland | Louisa | 135 | 0.031% | 127th |
| Italian girls | Switzerland | Louisa | 1 | 0.002% | 192nd |
| Romansh girls | Switzerland | Louisa | 1 | 0.027% | 9th |
Parts of a country counted above, not extra births. The share is what makes the regions comparable: they differ in size by a factor of three hundred.
By canton, Louisa is most concentrated in Zug, where 0.13% of children were given it – 36 of them.
Louisa: rank by region
In 2025, Louisa was given 5 times or more in 3 regions of Belgium.
| Region | Spelling | Place | Children |
|---|---|---|---|
| Flanders | Louisa | 329 | 16 |
| Wallonia | Louisa | 66 | 37 |
| Brussels | Louisa | 132 | 8 |
In 2025, with the country taken in 11 areas rather than 3, Louisa appears in the lists for Province of Namur (60th), Province of Liège (70th), Province of Hainaut (75th), Brussels-Capital Region (132nd) and Province of Flemish Brabant (164th).
Each of these is the top of a list the statistics office cut off somewhere – Belgium below 5 children – and published nothing after. So a region missing here is one where the name fell outside what was published, not one where it went unused. Places are shared where names tie, and the further down a list a place is, the more names can share it.
Louisa by city
| City | Years | Births | Best rank |
|---|---|---|---|
| Berlin girls | 2017–2023 | 224 | 75th |
One city over a few years, so these are much smaller numbers than the national ones above and not comparable with them.
Louisa among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| the Netherlands girls | Louisa | 6,262 | 25,613 |
| the Netherlands boys | Louisa | — | 1,028 |
| Finland girls | Louisa | 60 | 186 |
Among boys in the Netherlands this is mostly a middle name: of the 1,028 who carry it, fewer than five go by it.
A count of people on a register – the Netherlands on 1 January 2018, Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Related names
Louisa against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.