Boys' name · since 1880
Alonzo
45,955 babies named Alonzo in U.S. Social Security records since 1880, with the highest year being 2022. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #536 of 45,481
- all-time among boys
- #511 of 13,930
- 2025 SSA year
- 45,955
- born since 1880
- 2010s
- peak decade
45,955 babies have been named Alonzo since 1880, making it today's #511 boys' name.
Social Security Administration records show Alonzo recorded 45,955 times among boys since 1880, holding rank #511 nationally today, ahead of 96% of boys, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1880 to 2025.
- #536 of 45,481 all-time among boys
- #511 of 13,930 2025 SSA year
- 45,955 born since 1880
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Alonzo ranks #536 of 45,481 boys' names by all-time recorded births (highest first) and #511 of 13,930 among boys' names in 2025. 45,955 born since 1880, peaking in the 2010s.
- #536 of 45,481
- all-time among boys
- #511 of 13,930
- 2025 SSA year
- 45,955
- born since 1880
- 2010s
- peak decade
Alonzo's 45,955 recorded births place it above 98.82% of the 45,481 boys names in the full SSA archive.
44 jurisdictions carry state-level records, led by California.
How Alonzo compares
45,955 Top 4% higher than 96% 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
Alonzo's all-time total is 125x the median boys name, and Liam still leads by a wide margin.
| Metric | Alonzo | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 45,955 | 369 | 358,536 |
| Peak-year births | 651 | 34 | 22,252 |
Alonzo's usage pattern, beyond the headline number
Alonzo splits its recorded history at 1953: 69% of all births land in the more recent half, 31% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1903 (56 births) -- compare that against the 2022 peak of 651 for a sense of just how much the name's popularity has swung.
Alonzo popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1880–2025
- Peak year (2022)
- 651
- Annual births at peak, across 146 years of records
Alonzo popularity over time - girls
154 total births recorded since 1927 (Alonzo as girls' name)
Alonzo by decade
2010s is the heaviest window (5,251 births, 11% of the file).
2010s was Alonzo's strongest decade.
5,251 babies received the name during that ten-year window, about 11% of all-time use.
Alonzo births by decade
Total births in each ten-year window
- 1880s 1,088
1880s
1,088 births
- 1890s 879
1890s
879 births
- 1900s 808
1900s
808 births
- 1910s
1910s
2,218 births
- 1920s
1920s
2,986 births
- 1930s
1930s
2,434 births
- 1940s
1940s
2,647 births
- 1950s
1950s
3,966 births
- 1960s
1960s
4,395 births
- 1970s
1970s
3,490 births
- 1980s
1980s
3,619 births
- 1990s
1990s
4,262 births
- 2000s
2000s
4,329 births
- 2010s
2010s
5,251 births
- 2020s
2020s
3,583 births
What this shows Peak: 2010s at 5,251 births (11% of all-time use).
How Alonzo 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 Alonzo's total volume
Alonzo by state
Where Alonzo concentrates geographically, total births since 1880
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 5,236 | 11.4% |
| #2 | Texas | | 4,785 | 10.4% |
| #3 | Illinois | | 2,499 | 5.4% |
| #4 | Florida | | 2,097 | 4.6% |
| #5 | Georgia | | 1,926 | 4.2% |
| #6 | New York | | 1,868 | 4.1% |
| #7 | North Carolina | | 1,414 | 3.1% |
| #8 | South Carolina | | 1,375 | 3.0% |
5,236 of 45,955 births nationwide. Compared to a flat distribution across 44 reporting states.
Alonzo appears in 44 states. Explore state details →
Frequently Asked Questions
How popular is the name Alonzo? ▼
Where does Alonzo sit in the SSA name archive? ▼
When was Alonzo most popular? ▼
Where is Alonzo most popular? ▼
How long has the name Alonzo been used? ▼
What names are similar to Alonzo? ▼
What to do with Alonzo's data
- Alonzo's usage has stayed within range of its 2010s decade-level peak (5,251 total births) through the 2020s (3,583) -- a comparatively stable name, not a fading trend.
- California records the most Alonzos (5,236 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 Alonzo
Nearby Names Like Alonzo
Names with a similar sound, spelling, or feel to Alonzo
Compare Alonzo side by side: Alonzo vs Alonso Alonzo vs Aloysius Alonzo vs Alonza
Related Names
Names with a similar popularity rank to Alonzo
Nationwide names with similar peak year or record span
Two nationwide peer axes for Alonzo: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2022)
Similar record span (~145 yrs)
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, 1880–2025 (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 Alonzo 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.