Total births
1,925
Girls' name · since 1918
Guillermina
Guillermina has 1,925 recorded births since 1918 in federal Social Security data, most heavily in 1966 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #13609
- among girls today
- 1,925
- born since 1918
- 1970s
- peak decade
- 23%
- more common than other girls
Guillermina currently ranks #13609 among girls' names in America, with 1,925 babies recorded since 1918.
Social Security Administration records show Guillermina recorded 1,925 times among girls since 1918, holding rank #13609 nationally today, ahead of 23% of girls, peaking in the 1970s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1918 to 2024.
- #13609 among girls today
- 1,925 born since 1918
- 1970s peak decade
- 23% more common than other girls
Data updated Jun 2026
The verdict
Guillermina is currently the #13609 girls' name in America, more common than 23% of girls - 1,925 born since 1918, peaking in the 1970s.
- #13609
- among girls today
- 1,925
- born since 1918
- 1970s
- peak decade
- 23%
- more common than other girls
Guillermina vs. every other girls name in current SSA rankings
#13609
of 17,726 girls in use
More common than 23% of names given to girls today.
1970s
Peak decade
18% of everyone ever named Guillermina was born in this single decade.
1966
Single peak year
40 babies were named Guillermina in 1966 - its busiest year on record.
How Guillermina compares
1,925 Top 22% higher than 78% of 17,726 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
Guillermina's all-time total is 5x the median girls name, and Olivia still leads by a wide margin.
| Metric | Guillermina | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 1,925 | 382 | 567,345 |
| Peak-year births | 40 | 48 | 19,840 |
Guillermina's usage pattern, beyond the headline number
Splitting Guillermina's full recorded timeline at 1969, 54% of its total births fall in the more recent half of the record versus 46% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1920, with just 5 recorded births -- worth weighing against the 1966 peak of 40 to see the full range of the name's swing in popularity.
Guillermina at a glance
Outside the top 1,000Peak year
1966
Current rank
#13,609
Active since
1918
Guillermina popularity over time
Annual U.S. births registered with the Social Security Administration · 1918–2024
- Peak year (1966)
- 40
- Annual births at peak, across 107 years of records
Guillermina by decade
Total births in each ten-year window, peak vs trough at a glance
1970s was Guillermina's strongest decade.
350 babies received the name during that ten-year window, about 18% of all-time use.
Guillermina births by decade
Total births in each ten-year window
- 1910s 6
1910s
6 births
- 1920s 108
1920s
108 births
- 1930s 94
1930s
94 births
- 1940s
1940s
140 births
- 1950s
1950s
274 births
- 1960s
1960s
293 births
- 1970s
1970s
350 births
- 1980s
1980s
251 births
- 1990s
1990s
228 births
- 2000s 121
2000s
121 births
- 2010s 49
2010s
49 births
- 2020s 11
2020s
11 births
What this shows Peak: 1970s at 350 births (18% of all-time use).
How Guillermina 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 Guillermina's total volume
Guillermina vs 15 similarly-sized girls names
Guillermina by state
Where Guillermina concentrates geographically, total births since 1918
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 705 | 36.6% |
| #2 | Texas | | 515 | 26.8% |
| #3 | Illinois | | 11 | 0.6% |
| #4 | Arizona | | 10 | 0.5% |
California share of Guillermina's total US births 36.6%
Even split
705 of 1,925 births nationwide. Compared to a flat distribution across 4 reporting states.
Frequently Asked Questions
How popular is the name Guillermina? ▼
Since 1918, Social Security records show 1,925 babies named Guillermina. Today it holds rank #13609 among girls. Its busiest year on record was 1966, with 40 births.
When was Guillermina most popular? ▼
Guillermina was most popular in the 1970s decade with 350 total births. The single peak year was 1966.
Where is Guillermina most popular? ▼
The top states for the name Guillermina are California (705 births), Texas (515 births), Illinois (11 births).
How long has the name Guillermina been used? ▼
Guillermina has been recorded in Social Security data since 1918, spanning 107 years of data through 2024.
What names are similar to Guillermina? ▼
Names with a similar sound or spelling include Guinevere, Guiliana, Guilianna, Guiselle, and 4 more. These share a common prefix and are also used for girls.
What to do with Guillermina's data
- Guillermina's decade-level peak was the 1970s (350 total births); usage has since declined to 11 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Guillerminas (705 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.
Keep exploring Guillermina
Nearby Names Like Guillermina
Names with a similar sound, spelling, or feel to Guillermina
Guinevere Girl
#945 4,592 births
Guiliana Girl
#12666 528 births
Guilianna Girl
#14333 196 births
Guiselle Girl
151 births
Guida Girl
128 births
Compare Guillermina side by side: Guillermina vs Guinevere Guillermina vs Guiliana Guillermina vs Guilianna
Related Names
Names with a similar popularity rank to Guillermina
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, 1918–2024 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Guillermina: #13609 Girls' Name - 1,925 Births, Peak 1966." NameAlmanac. Accessed via https://namealmanac.com/name/guillermina. 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 Guillermina 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.