Boys' name · since 1915

Alonso

12,231 babies named Alonso in U.S. Social Security records since 1915, with the highest year being 2010. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

#1,075 of 45,481
all-time among boys
#785 of 13,930
2025 SSA year
12,231
born since 1915
2010s
peak decade

Alonso currently ranks #785 among boys' names in America, with 12,231 babies recorded since 1915.

Alonso has 12,231 recorded births among boys since 1915, per the U.S. Social Security Administration, ranked #785 as of the latest data, more common than 94% of boys, 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 1915 to 2025.

  • #1,075 of 45,481 all-time among boys
  • #785 of 13,930 2025 SSA year
  • 12,231 born since 1915
  • 2010s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Alonso ranks #1,075 of 45,481 boys' names by all-time recorded births (highest first) and #785 of 13,930 among boys' names in 2025. 12,231 born since 1915, peaking in the 2010s.

#1,075 of 45,481
all-time among boys
#785 of 13,930
2025 SSA year
12,231
born since 1915
2010s
peak decade
0%100%Median name50%94.3%
Alonso vs. every other boys name in current SSA rankings
Upper archive tier
All-time archive position

Alonso's 12,231 recorded births place it above 97.63% of the 45,481 boys names in the full SSA archive.

32 jurisdictions
State-record footprint

32 jurisdictions carry state-level records, led by California.

How Alonso compares

12,231 Top 8% higher than 92% of 13,930 names currently given to boys

Based on all-time total births among currently-ranked boys 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

Alonso's all-time total is 33x the median boys name, and Liam still leads by a wide margin.

Metric Alonso Median boys name (Takari) #1 boys name (Liam)
All-time total births 12,231 369 358,536
Peak-year births 380 34 22,252

Alonso's usage pattern, beyond the headline number

Alonso splits its recorded history at 1972: 94% of all births land in the more recent half, 6% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1915 (5 births) -- compare that against the 2010 peak of 380 for a sense of just how much the name's popularity has swung.

Alonso popularity over time

Annual U.S. births registered with the Social Security Administration · 1915–2025

Top 1,000 boys' name
Peak year (2010)
380
Annual births at peak, across 111 years of records
0100200300400 191519301946196019741988200220162025 324

Alonso by decade

2010s is the heaviest window (3,311 births, 27% of the file).

2010s was Alonso's strongest decade.

3,311 babies received the name during that ten-year window, about 27% of all-time use.

Alonso births by decade

Total births in each ten-year window

births

What this shows Peak: 2010s at 3,311 births (27% of all-time use).

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

How Alonso compares to similarly-sized names

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

Alonso vs 15 similarly-sized boys names Scatter plot of 16 data points. 0%2%4%6%8%10%12% 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, 2.4%-120, 2.6%-66, 3.9%-59, 5.3%-97, 3.6%-103, 3.6%-146, 4.3%-146, 2%-31, 7%-57, 4.3%-146, 4.6%-84, 3.8%-146, 2.7%-34, 10.2%-107, 3.6%Alonso-111, 3.1%Alonso
Alonso vs 15 similarly-sized boys names

Alonso by state

Where Alonso concentrates geographically, total births since 1915

Regionally concentrated
Top 8 states by recorded births for the name Alonso
Rank State Visual share Births Share of total
#1 California
3,782 30.9%
#2 Texas
2,562 20.9%
#3 Arizona
655 5.4%
#4 Illinois
629 5.1%
#5 Florida
403 3.3%
#6 Colorado
325 2.7%
#7 New York
258 2.1%
#8 Washington
195 1.6%
California share of Alonso's total US births 30.9%
Even split

3,782 of 12,231 births nationwide. Compared to a flat distribution across 32 reporting states.

Alonso appears in 32 states. Explore state details →

Frequently Asked Questions

How popular is the name Alonso?
Since 1915, Social Security records show 12,231 babies named Alonso. Across the full SSA archive it ranks #1,075 of 45,481 boys' names by total births. In 2025, it holds #785 of 13,930 among boys. Its busiest year on record was 2010, with 380 births.
Where does Alonso sit in the SSA name archive?
According to the U.S. Social Security Administration, Alonso ranks #1,075 of 45,481 boys' names by all-time recorded births (highest first) and #785 of 13,930 among boys' 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 Alonso most popular?
Alonso was most popular in the 2010s decade with 3,311 total births. The single peak year was 2010.
Where is Alonso most popular?
The top states for the name Alonso are California (3,782 births), Texas (2,562 births), Arizona (655 births).
How long has the name Alonso been used?
Records for Alonso go back to 1915, giving 111 years of history through 2025.
What names are similar to Alonso?
Names with a similar sound or spelling include Alonzo, Aloysius, Alonza, Alois, and 4 more. These share a common prefix and are also used for boys.

What to do with Alonso's data

  • Alonso's usage has stayed within range of its 2010s decade-level peak (3,311 total births) through the 2020s (1,894) -- a comparatively stable name, not a fading trend.
  • California records the most Alonsos (3,782 births) -- see the full state breakdown if geography matters to your decision. California names

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

Keep exploring Alonso

Nearby Names Like Alonso

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

Names with a similar popularity rank to Alonso

Nationwide names with similar peak year or record span

Two nationwide peer axes for Alonso: 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, 1915–2025 (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 Alonso 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.