boys' name ★ peaked 2010

Alonso

Gender Boy Rank 2025 #785 Trend → Stable

A male given name from the Germanic languages, variant of Alfonso.

Rank 2025
#785
among boys · ↓16 vs 2024
Babies in 2025
324
named Alonso · -1% vs 2024
How common
1 in 5,272
boys born in 2025
Peak year
2010
380 babies
All-time total
12,231
#1,075 all-time among boys
First recorded
1915
in Social Security records

Alonso popularity over time

12,231 babies have been named Alonso since 1915, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.060.130.190.2518801900192019401960198020002020Peak 2010Boys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Boys Per year Change Best rank
1880s – – – –
1890s – – – –
1900s – – – –
1910s 31 3 – #3,182
1920s 66 7 +113% #2,456
1930s 72 7 +9% #2,334
1940s 74 7 +3% #1,850
1950s 146 15 +97% #1,547
1960s 236 24 +62% #1,364
1970s 457 46 +94% #1,134
1980s 836 84 +83% #865
1990s 1,883 188 +125% #711
2000s 3,225 323 +71% #622
2010s 3,311 331 +3% #636
2020s (to 2025) 1,894 316 -5% #752

Where Alonso is heading

A five-year projection from the recent trend in births per 1,000 boys (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 boys Implied rank
2026 328 0.19 outside top 500
2027 332 0.19 outside top 500
2028 336 0.20 outside top 500
2029 338 0.20 outside top 500
2030 341 0.20 outside top 500

Where Alonso is most popular

Boys named Alonso per 1,000 boys born in each state, 2021–2025. National average: 0.185 per 1,000. Strongest in Arizona, Texas, and California.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are boys named Alonso born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Boys 2021–2025 Per 1,000 vs national
Arizona 76 0.465 +151%
Texas 379 0.430 +133%
California 372 0.407 +120%
Colorado 40 0.310 +68%
Nevada 17 0.298 +61%
Illinois 73 0.286 +54%
Florida 107 0.226 +22%
Washington 30 0.183 ≈ national
New York 67 0.155 -16%
New Mexico 5 0.152 -18%
North Carolina 32 0.125 -32%
Oklahoma 11 0.124 -33%
Georgia 31 0.122 -34%
New Jersey 23 0.114 -38%
Connecticut 6 0.089 -52%
Kansas 6 0.087 -53%
Oregon 6 0.079 -57%
South Carolina 6 0.058 -69%
Louisiana 5 0.049 -74%
Massachusetts 6 0.044 -76%
Indiana 6 0.037 -80%
Tennessee 5 0.028 -85%
Virginia 5 0.026 -86%
Michigan 5 0.024 -87%
Alaska – – –
Alabama – – –
Arkansas – – –
District of Columbia – – –
Delaware – – –
Hawaii – – –
Iowa – – –
Idaho – – –
Kentucky – – –
Maryland – – –
Maine – – –
Minnesota – – –
Missouri – – –
Mississippi – – –
Montana – – –
North Dakota – – –
Nebraska – – –
New Hampshire – – –
Ohio – – –
Pennsylvania – – –
Rhode Island – – –
South Dakota – – –
Utah – – –
Vermont – – –
Wisconsin – – –
West Virginia – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Alonso

Alonso is uncommon for boys in the United States, ranked #785 in 2025 with 324 babies given the name. It is currently holding steady compared with a decade ago.

Since 1915, 12,231 American babies have been named Alonso. Its peak came in 2010, when 380 newborns received the name, the signature sound of the 2010s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Alonso stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Alonso?

The median living Alonso is about 17 years old; half are between 9 and 28. An estimated 12 thousand people named Alonso are alive in the United States today.

median 17 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Alonso year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Boys Boys rank
2025 324 #785
2024 328 #769
2023 287 #845
2022 340 #752
2021 318 #778
2020 297 #784
2019 316 #755
2018 300 #772
2017 317 #746
2016 319 #763
2015 333 #733
2014 339 #712
2013 348 #688
2012 312 #742
2011 347 #678
2010 380 #636
2009 373 #659
2008 363 #665
2007 363 #661
2006 360 #644
2005 329 #655
2004 297 #677
2003 296 #669
2002 316 #622
2001 243 #722
2000 285 #639
1995 222 #716
1990 157 #812
1985 63 #1,181
1980 55 #1,238
1975 51 #1,182
1970 40 #1,314
1965 23 #1,625
1960 22 #1,728
1955 9 #2,769
1950 13 #2,112
1945 5 #3,344
1940 – –
1935 6 #3,264
1930 9 #2,781
1925 – –
1920 9 #2,971
1915 5 #3,837
1910 – –
1905 – –
1900 – –
1895 – –
1890 – –
1885 – –
1880 – –

Famous people named Alonso

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Alonso de Ojeda Alonso de Ojeda Spanish conquistador, navigator and governor 1466–1515 · Medieval
  2. 2 Alonso Sánchez Coello Alonso Sánchez Coello Spanish painter (1531/1532–1588) 16th century
  3. 3 Alonso de Ercilla Alonso de Ercilla Spanish soldier and poet (1533–1594) 16th century
  4. 4 Alonso Berruguete Alonso Berruguete Spanish painter, sculptor and architect (c. 1488–1561) Medieval
  5. 5 Alonso Edward Alonso Edward Panamanian sprinter (born 1989) Contemporary
  6. 6 Alonso Mudarra Spanish composer 1510–1580 · 16th century
  7. 7 Alonso Pérez de Guzmán y Sotomayor, 7th Duke of Medina Sidonia Alonso Pérez de Guzmán y Sotomayor, 7th Duke of Medina Sidonia Spanish aristocrat (1550–1615) 16th century

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Alonso, drawn from the same Social Security data as the charts above.

How old is the average Alonso?

The median living Alonso is about 17 years old. Half of all living Alonsos are between 9 and 28 years old.

How many people named Alonso are alive today?

An estimated 12 thousand people named Alonso are alive in the United States, based on 12,231 recorded births and Social Security life tables.

What does the name Alonso mean?

A male given name from the Germanic languages, variant of Alfonso.

How popular is the name Alonso in 2025?

Alonso ranked #785 among boys' names in the United States in 2025, with 324 babies given the name, according to Social Security Administration data.

How many people are named Alonso?

12,231 babies have been named Alonso in the United States since 1915, based on Social Security card applications.

When was the name Alonso most popular?

Alonso peaked in 2010, when 380 newborns received the name.

Is Alonso a boy or girl name?

Alonso is overwhelmingly a boy's name: 100% of babies with the name.

Is the name Alonso rising or falling?

Alonso has been roughly stable over the past decade.

Will Alonso become more popular?

Alonso looks stable. If the recent trend holds, we project roughly 341 boys named Alonso in 2030, ranking outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Who are famous people named Alonso?

Well-known people named Alonso include Alonso de Ojeda (explorer), Alonso Sánchez Coello (painter), Alonso de Ercilla (writer).

Names like Alonso

Names that sound and feel close to Alonso: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Alonso with similar names → More names starting with A →