Girls' name · since 1880

Louisa

Since 1880, U.S. Social Security records show 21,932 babies named Louisa, peaking in 2021. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#1,000 of 72,339
all-time among girls
#694 of 17,297
2025 SSA year
21,932
born since 1880
2010s
peak decade

21,932 babies have been named Louisa since 1880, making it today's #694 girls' name.

Louisa has 21,932 recorded births among girls since 1880, per the U.S. Social Security Administration, ranked #694 as of the latest data, more common than 96% of girls, busiest in the 2010s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1880 to 2025.

  • #1,000 of 72,339 all-time among girls
  • #694 of 17,297 2025 SSA year
  • 21,932 born since 1880
  • 2010s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Louisa ranks #1,000 of 72,339 girls' names by all-time recorded births (highest first) and #694 of 17,297 among girls' names in 2025. 21,932 born since 1880, peaking in the 2010s.

#1,000 of 72,339
all-time among girls
#694 of 17,297
2025 SSA year
21,932
born since 1880
2010s
peak decade
0%100%Median name50%95.9%
Louisa vs. every other girls name in current SSA rankings
Upper archive tier
All-time archive position

Louisa's 21,932 recorded births place it above 98.61% of the 72,339 girls names in the full SSA archive.

46 jurisdictions
State-record footprint

46 jurisdictions carry state-level records, led by New York.

How Louisa compares

21,932 Top 6% higher than 94% of 17,297 names currently given to girls

Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.

Source U.S. Social Security Administration, national baby name data

How the numbers stack up

Louisa's all-time total is 58x the median girls name, and Olivia still leads by a wide margin.

Metric Louisa Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 21,932 376 567,345
Peak-year births 424 21 19,840

Louisa's usage pattern, beyond the headline number

Divide Louisa's SSA record in two at 1953 and the more recent half accounts for 54% of all births, the earlier half the remaining 46%, a genuinely balanced usage pattern. Its calmest year was 1988, with only 73 births recorded -- set against the 2021 peak of 424, that's the full swing in one name's fortunes.

Louisa popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1880–2025

Top 1,000 girls' name
Peak year (2021)
424
Annual births at peak, across 146 years of records
0100200300400500 188018991918193719561975199420132025 407

Louisa popularity over time - boys

5 total births recorded since 1922 (Louisa as boys' name)

Unisex variant - 5 births
5 1922 5

Louisa by decade

2010s is the heaviest window (2,939 births, 13% of the file).

2010s was Louisa's strongest decade.

2,939 babies received the name during that ten-year window, about 13% of all-time use.

Louisa births by decade

Total births in each ten-year window

births

What this shows Peak: 2010s at 2,939 births (13% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

How Louisa compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Louisa's total volume

Louisa vs 15 similarly-sized girls names Scatter plot of 16 data points. 0%5%10%15% 050100150200 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -144, 2.6%-118, 5.9%-139, 5.1%-129, 2.7%-146, 5.4%-57, 12%-63, 5.2%-141, 4.2%-37, 9.3%-146, 2.2%-111, 5.3%-58, 5.4%-77, 4.7%-146, 2%-46, 4.5%Louisa-146, 1.9%Louisa
Louisa vs 15 similarly-sized girls names

Louisa by state

Where Louisa concentrates geographically, total births since 1880

Geographically diffuse
Top 8 states by recorded births for the name Louisa
Rank State Visual share Births Share of total
#1 New York
1,973 9.0%
#2 California
1,610 7.3%
#3 Texas
1,499 6.8%
#4 Pennsylvania
885 4.0%
#5 Massachusetts
723 3.3%
#6 Illinois
501 2.3%
#7 New Jersey
431 2.0%
#8 Ohio
344 1.6%
New York share of Louisa's total US births 9.0%
Even split

1,973 of 21,932 births nationwide. Compared to a flat distribution across 46 reporting states.

Louisa appears in 46 states. Explore state details →

Frequently Asked Questions

How popular is the name Louisa?
Since 1880, Social Security records show 21,932 babies named Louisa. Across the full SSA archive it ranks #1,000 of 72,339 girls' names by total births. In 2025, it holds #694 of 17,297 among girls. Its busiest year on record was 2021, with 424 births.
Where does Louisa sit in the SSA name archive?
According to the U.S. Social Security Administration, Louisa ranks #1,000 of 72,339 girls' names by all-time recorded births (highest first) and #694 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Louisa most popular?
Louisa was most popular in the 2010s decade with 2,939 total births. The single peak year was 2021.
Where is Louisa most popular?
The top states for the name Louisa are New York (1,973 births), California (1,610 births), Texas (1,499 births).
How long has the name Louisa been used?
Louisa has been recorded in Social Security data since 1880, spanning 146 years of data through 2025.
What names are similar to Louisa?
Names with a similar sound or spelling include Louise, Lou, Lourdes, Louella, and 4 more. These share a common prefix and are also used for girls.

What to do with Louisa's data

  • Louisa's usage has stayed within range of its 2010s decade-level peak (2,939 total births) through the 2020s (2,285) -- a comparatively stable name, not a fading trend.
  • New York records the most Louisas (1,973 births) -- see the full state breakdown if geography matters to your decision. New York names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Louisa

Nearby Names Like Louisa

Names with a similar sound, spelling, or feel to Louisa

Names with a similar popularity rank to Louisa

Nationwide names with similar peak year or record span

Two nationwide peer axes for Louisa: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 2026. Source: U.S. Social Security Administration (SSA).

According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1880–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Louisa draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.