Unisex name · since 1961

Soo

193 babies named Soo in U.S. Social Security records since 1961, with the highest year being 1990. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

193
total births
1961–2004
years on record
1990s
peak decade
33%
born in that decade

193 girls have been named Soo since 1961, though it isn't currently a top-ranked name.

Social Security Administration records show Soo recorded 193 times among girls since 1961, though it doesn't currently rank among the most-used girls names, peaking in the 1990s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1961 to 2004.

  • 193 total births
  • 1961–2004 years on record
  • 1990s peak decade
  • 33% born in that decade

Data updated Jul 2026

The verdict

193 girls have been named Soo since 1961, peaking in the 1990s, last recorded in 2004.

193
total births
1961–2004
years on record
1990s
peak decade
33%
born in that decade
1990s
Peak decade

33% of everyone ever named Soo was born in this single decade.

1990
Single peak year

14 babies were named Soo in 1990 - its busiest year on record.

Soo's usage pattern, beyond the headline number

Divide Soo's SSA record in two at 1985 and the more recent half accounts for 55% of all births, the earlier half the remaining 45%, a genuinely balanced usage pattern. Its calmest year was 1961, with only 5 births recorded -- set against the 1990 peak of 14, that's the full swing in one name's fortunes.

Soo at a glance

Last recorded 2004

Total births

193

Since 1961

44 years of records

Peak year

1990

14 births that year

Strongest decade: 1990s

Current rank

Unranked

Outside the modern top-1,000

As of 2004

Active since

1961

Recorded for 44 years

Last year on file: 2004

Soo popularity over time - girls

Annual U.S. births registered with the Social Security Administration · 1961–2004

Last recorded 2004
Peak year (1990)
14
Annual births at peak, across 44 years of records
46810121416 1961197519811985199119962004 5

Soo popularity over time - boys

18 total births recorded since 1981 (Soo as boys' name)

Unisex variant - 18 births
456789 198119841994 5

Soo by decade

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

1990s was Soo's strongest decade.

64 babies received the name during that ten-year window, about 33% of all-time use.

Soo births by decade

Total births in each ten-year window

births

What this shows Peak: 1990s at 64 births (33% of all-time use).

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

Soo by state

Where Soo concentrates geographically, total births since 1961

Geographically diffuse
Top 1 states by recorded births for the name Soo
Rank State Visual share Births Share of total
#1 California
5 2.6%
California share of Soo's total US births 2.6%

5 of 193 births nationwide.

Frequently Asked Questions

How popular is the name Soo?
193 babies have been named Soo since 1961. It was last recorded in 2004. The peak year was 1990 with 14 births.
When was Soo most popular?
Soo was most popular in the 1990s decade with 64 total births. The single peak year was 1990.
Where is Soo most popular?
The top states for the name Soo are California (5 births).
Is Soo a unisex name?
Yes, Soo is used for both boys and girls. As a girl's name it has 193 births, and as a boy's name it has 18 births.
How long has the name Soo been used?
Records for Soo go back to 1961, giving 44 years of history through 2004.
What names are similar to Soo?
Names with a similar sound or spelling include Sookie, Soon, Soojin, Sooner, and 3 more. These share a common prefix and are also used for girls.

What to do with Soo's data

  • Soo's decade-level peak was the 1990s (64 total births); usage has since declined to 17 in the 2000s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • California records the most Soos (5 births) -- see the full state breakdown if geography matters to your decision. California names
  • 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 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, 1961–2004 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Soo: Baby Name Since 1961 - 193 Births, Peak 1990." NameAlmanac. Accessed via https://namealmanac.com/name/soo. 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 Soo 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.