Total births
53
Unisex name · since 1920
Lo
Since 1920, U.S. Social Security records show 53 babies named Lo, peaking in 1935. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 53
- total births
- 1920–2023
- years on record
- 2020s
- peak decade
- 40%
- born in that decade
Lo is not among the current top-ranked girls names; 53 have been recorded since 1920.
According to the U.S. Social Security Administration, Lo has been recorded 53 times among girls since 1920, though it is not among the currently most-used girls names, with its heaviest use in the 2020s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1920 to 2023.
- 53 total births
- 1920–2023 years on record
- 2020s peak decade
- 40% born in that decade
Data updated Jul 2026
The verdict
53 girls have been named Lo since 1920, peaking in the 2020s, last recorded in 2023.
- 53
- total births
- 1920–2023
- years on record
- 2020s
- peak decade
- 40%
- born in that decade
2020s
Peak decade
40% of everyone ever named Lo was born in this single decade.
1935
Single peak year
6 babies were named Lo in 1935 - its busiest year on record.
Lo's usage pattern, beyond the headline number
Lo splits its recorded history at 2018: 49% of all births land in the more recent half, 51% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1920 (5 births) -- compare that against the 1935 peak of 6 for a sense of just how much the name's popularity has swung.
Lo at a glance
Last recorded 2023Peak year
1935
Current rank
Unranked
Active since
1920
Lo popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1920–2023
- Peak year (1935)
- 6
- Annual births at peak, across 104 years of records
Lo popularity over time - boys
33 total births recorded since 1982 (Lo as boys' name)
Lo by decade
Total births in each ten-year window, peak vs trough at a glance
2020s was Lo's strongest decade.
21 babies received the name during that ten-year window, about 40% of all-time use.
Lo births by decade
Total births in each ten-year window
- 1920s 5
1920s
5 births
- 1930s
1930s
16 births
- 1950s 6
1950s
6 births
- 2010s 5
2010s
5 births
- 2020s
2020s
21 births
What this shows Peak: 2020s at 21 births (40% of all-time use).
Frequently Asked Questions
How popular is the name Lo? ▼
Lo has been given to 53 babies in the U.S. since 1920, according to SSA data. Its last appearance in the data was 2023. 6 babies were born in 1935, its single highest year.
When was Lo most popular? ▼
Lo was most popular in the 2020s decade with 21 total births. The single peak year was 1935.
Is Lo a unisex name? ▼
Yes, Lo is used for both boys and girls. As a girl's name it has 53 births, and as a boy's name it has 33 births.
How long has the name Lo been used? ▼
The SSA has tracked Lo since 1920 -- 104 years through the most recent 2023 data.
What names are similar to Lo? ▼
Names with a similar sound or spelling include Lori, Louise, Lois, Lorraine, and 4 more. These share a common prefix and are also used for girls.
Keep exploring Lo
Nearby Names Like Lo
Names with a similar sound, spelling, or feel to Lo
Lori Girl
#1524 341,911 births
Louise Girl
#540 336,466 births
Lois Girl
#1682 332,950 births
Lorraine Girl
#1420 209,910 births
Loretta Girl
#677 177,564 births
Compare Lo side by side: Lo vs Lori Lo vs Louise Lo vs Lois
Related Names
Names with a similar number of total births
Data Sources
Data as of July 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, 1920–2023 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Lo: Baby Name Since 1920 - 53 Births, Peak 1935." NameAlmanac. Accessed via https://namealmanac.com/name/lo. 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 Lo 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 July 2026.