Girls' name · since 1886

Lousia

Since 1886, U.S. Social Security records show 17 babies named Lousia, peaking in 1919. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

17
total births
1886–1970
years on record
1910s
peak decade
41%
born in that decade

Lousia sits outside today's top ranks for girls, with 17 recorded since 1886.

According to the U.S. Social Security Administration, Lousia has been recorded 17 times among girls since 1886, though it is not among the currently most-used girls names, with its heaviest use in the 1910s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1886 to 1970.

  • 17 total births
  • 1886–1970 years on record
  • 1910s peak decade
  • 41% born in that decade

Data updated Jun 2026

The verdict

17 girls have been named Lousia since 1886, peaking in the 1910s, last recorded in 1970.

17
total births
1886–1970
years on record
1910s
peak decade
41%
born in that decade
1910s
Peak decade

41% of everyone ever named Lousia was born in this single decade.

1919
Single peak year

7 babies were named Lousia in 1919 - its busiest year on record.

Lousia's usage pattern, beyond the headline number

Splitting Lousia's full recorded timeline at 1919, 71% of its total births fall in the more recent half of the record versus 29% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1886, with just 5 recorded births -- worth weighing against the 1919 peak of 7 to see the full range of the name's swing in popularity.

Lousia at a glance

Last recorded 1970

Total births

17

Since 1886

85 years of records

Peak year

1919

7 births that year

Strongest decade: 1910s

Current rank

Unranked

Outside the modern top-1,000

As of 1970

Active since

1886

Recorded for 85 years

Last year on file: 1970

Lousia popularity over time

Annual U.S. births registered with the Social Security Administration · 1886–1970

Last recorded 1970
Peak year (1919)
7
Annual births at peak, across 85 years of records
4.555.566.577.5 188619191970 5

Lousia by decade

Total births in each ten-year window, peak vs trough at a glance

1910s was Lousia's strongest decade.

7 babies received the name during that ten-year window, about 41% of all-time use.

Lousia births by decade

Total births in each ten-year window

births

What this shows Peak: 1910s at 7 births (41% of all-time use).

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

Frequently Asked Questions

How popular is the name Lousia?
Since 1886, Social Security records show 17 babies named Lousia. The most recent recorded year was 1970. Its busiest year on record was 1919, with 7 births.
When was Lousia most popular?
Lousia was most popular in the 1910s decade with 7 total births. The single peak year was 1919.
How long has the name Lousia been used?
Lousia has been recorded in Social Security data since 1886, spanning 85 years of data through 1970.
What names are similar to Lousia?
Names with a similar sound or spelling include Louise, Lou, Louisa, Lourdes, and 4 more. These share a common prefix and are also used for girls.

What to do with Lousia's data

  • Lousia's usage has stayed within range of its 1910s decade-level peak (7 total births) through the 1970s (5) -- a comparatively stable name, not a fading trend.
  • Weighing it against an alternative? Put two names side by side. Compare names

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

Data Sources

Data as of June 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, 1886–1970 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Lousia: Baby Name Since 1886 - 17 Births, Peak 1919." NameAlmanac. Accessed via https://namealmanac.com/name/lousia. Licensed CC BY-SA 4.0.

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 Lousia 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 June 2026.