Baby Names US
girls' name ★ peaked 2021

Louisa

Gender Girl Rank 2025 #697 Trend → Stable

A female given name from the Germanic languages, a latinized form of Louise used since the eighteenth century.

Rank 2025
#697
among girls · ↑36 vs 2024
Babies in 2025
407
named Louisa · +6% vs 2024
How common
1 in 3,949
girls born in 2025
Peak year
2021
424 babies
All-time total
21,937
#1,000 all-time among girls
First recorded
1880
in Social Security records

Louisa popularity over time

21,937 babies have been named Louisa since 1880, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.511.5218801900192019401960198020002020GirlsBoys
GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s 1,420 – 1,420 142 – #119
1890s 1,272 – 1,272 127 -10% #180
1900s 993 – 993 99 -22% #271
1910s 1,619 – 1,619 162 +63% #382
1920s 1,765 5 1,770 177 +9% #497
1930s 1,227 – 1,227 123 -31% #532
1940s 1,284 – 1,284 128 +5% #605
1950s 1,442 – 1,442 144 +12% #714
1960s 1,371 – 1,371 137 -5% #826
1970s 1,005 – 1,005 101 -27% #1,015
1980s 1,072 – 1,072 107 +7% #1,096
1990s 1,084 – 1,084 108 +1% #1,325
2000s 1,154 – 1,154 115 +6% #1,580
2010s 2,939 – 2,939 294 +155% #688
2020s (to 2025) 2,285 – 2,285 381 +30% #687

Where Louisa is heading

A five-year projection from the recent trend in births per 1,000 girls (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 girls Implied rank
2026 407 0.25 outside top 500
2027 407 0.25 outside top 500
2028 407 0.25 outside top 500
2029 407 0.25 outside top 500
2030 407 0.25 outside top 500

Where Louisa is most popular

Girls named Louisa per 1,000 girls born in each state, 2021–2025. National average: 0.234 per 1,000. Strongest in District of Columbia, Alaska, and Massachusetts.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are girls named Louisa born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Girls 2021–2025 Per 1,000 vs national
District of Columbia 15 1.27 +440%
Alaska 10 1.16 +395%
Massachusetts 90 0.744 +218%
Minnesota 74 0.686 +193%
Oregon 40 0.614 +162%
Colorado 61 0.546 +133%
Utah 45 0.541 +131%
Montana 7 0.517 +121%
Wisconsin 51 0.495 +111%
Washington 69 0.478 +104%
Michigan 80 0.439 +87%
New York 161 0.407 +73%
Pennsylvania 86 0.364 +55%
Ohio 81 0.341 +46%
Illinois 78 0.341 +45%
Virginia 58 0.340 +45%
Maine 5 0.323 +38%
Missouri 37 0.307 +31%
Kansas 17 0.295 +26%
Tennessee 46 0.290 +24%
North Carolina 65 0.285 +22%
New Hampshire 5 0.271 +16%
South Carolina 24 0.267 +14%
Maryland 26 0.245 +5%
Indiana 32 0.228 ≈ national
New Jersey 36 0.199 -15%
Alabama 17 0.181 -23%
Georgia 41 0.180 -23%
California 141 0.168 -28%
Idaho 5 0.149 -36%
Arizona 20 0.143 -39%
Texas 93 0.116 -51%
Iowa 6 0.103 -56%
Florida 39 0.091 -61%
Oklahoma 5 0.068 -71%
Arkansas – – –
Connecticut – – –
Delaware – – –
Hawaii – – –
Kentucky – – –
Louisiana – – –
Mississippi – – –
North Dakota – – –
Nebraska – – –
New Mexico – – –
Nevada – – –
Rhode Island – – –
South Dakota – – –
Vermont – – –
West Virginia – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Louisa

Louisa is uncommon for girls in the United States, ranked #697 in 2025 with 407 babies given the name. It is currently rising compared with a decade ago.

Since 1880, 21,937 American babies have been named Louisa. Its peak came in 2021, when 424 newborns received the name, the signature sound of the 2020s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Louisa stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Louisa?

The median living Louisa is about 27 years old; half are between 8 and 59. An estimated 13 thousand people named Louisa are alive in the United States today.

median 27 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Louisa year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 407 #697 – –
2024 385 #733 – –
2023 346 #808 – –
2022 340 #825 – –
2021 424 #687 – –
2020 383 #725 – –
2019 422 #688 – –
2018 386 #731 – –
2017 373 #752 – –
2016 347 #828 – –
2015 303 #907 – –
2014 281 #955 – –
2013 245 #1,020 – –
2012 222 #1,119 – –
2011 197 #1,221 – –
2010 163 #1,411 – –
2009 140 #1,607 – –
2008 124 #1,781 – –
2007 126 #1,732 – –
2006 119 #1,752 – –
2005 116 #1,712 – –
2004 119 #1,636 – –
2003 99 #1,868 – –
2002 118 #1,580 – –
2001 104 #1,735 – –
2000 89 #1,914 – –
1995 96 #1,583 – –
1990 107 #1,462 – –
1985 99 #1,337 – –
1980 115 #1,171 – –
1975 98 #1,185 – –
1970 123 #1,015 – –
1965 145 #826 – –
1960 151 #846 – –
1955 146 #800 – –
1950 138 #730 – –
1945 112 #705 – –
1940 134 #605 – –
1935 102 #651 – –
1930 164 #532 – –
1925 200 #498 – –
1920 192 #500 – –
1915 187 #449 – –
1910 84 #434 – –
1905 83 #374 – –
1900 144 #271 – –
1895 112 #263 – –
1890 168 #180 – –
1885 138 #156 – –
1880 126 #130 – –

Famous people named Louisa

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Louisa May Alcott Louisa May Alcott American novelist (1832–1888) 19th century
  2. 2 Louisa Adams Louisa Adams First Lady of the United States from 1825 to 1829 1775–1852 · 18th century
  3. 3 Louisa Johnson Louisa Johnson English singer (born 1998) Contemporary
  4. 4 Louisa Ulrika of Prussia Louisa Ulrika of Prussia Queen of Sweden from 1751 to 1771 1720–1782 · 18th century
  5. 5 Louisa Maria Stuart Louisa Maria Stuart Princess Royal (titular) 1692–1712 · 17th century
  6. 6 Louisa Cadamuro Louisa Cadamuro French footballer (born 1987) Contemporary
  7. 7 Louisa Chirico Louisa Chirico American tennis player (born 1996) Contemporary
  8. 8 Louisa Hanoune Louisa Hanoune Algerian politician (born 1954) Contemporary

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Louisa, drawn from the same Social Security data as the charts above.

How old is the average Louisa?

The median living Louisa is about 27 years old. Half of all living Louisas are between 8 and 59 years old.

How many people named Louisa are alive today?

An estimated 13 thousand people named Louisa are alive in the United States, based on 21,937 recorded births and Social Security life tables.

What does the name Louisa mean?

A female given name from the Germanic languages, a latinized form of Louise used since the eighteenth century.

How popular is the name Louisa in 2025?

Louisa ranked #697 among girls' names in the United States in 2025, with 407 babies given the name, according to Social Security Administration data.

How many people are named Louisa?

21,937 babies have been named Louisa in the United States since 1880, based on Social Security card applications.

When was the name Louisa most popular?

Louisa peaked in 2021, when 424 newborns received the name.

Is Louisa a boy or girl name?

Louisa is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Louisa rising or falling?

Louisa is on the rise, noticeably more popular now than a decade ago.

Will Louisa become more popular?

Louisa looks stable. If the recent trend holds, we project roughly 407 girls named Louisa in 2030, ranking outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Who are famous people named Louisa?

Well-known people named Louisa include Louisa May Alcott (writer), Louisa Adams (politician), Louisa Johnson (singer).

Names like Louisa

Names that sound and feel close to Louisa: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Louisa with similar names → More names starting with L →