Boys' name · since 1990
Caio
Caio has 722 recorded births since 1990 in federal Social Security data, most heavily in 2023 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #6,309 of 45,481
- all-time among boys
- #3,349 of 13,930
- 2025 SSA year
- 722
- born since 1990
- 2010s
- peak decade
Caio currently ranks #3349 among boys' names in America, with 722 babies recorded since 1990.
Caio has 722 recorded births among boys since 1990, per the U.S. Social Security Administration, ranked #3349 as of the latest data, more common than 76% 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 1990 to 2025.
- #6,309 of 45,481 all-time among boys
- #3,349 of 13,930 2025 SSA year
- 722 born since 1990
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Caio ranks #6,309 of 45,481 boys' names by all-time recorded births (highest first) and #3,349 of 13,930 among boys' names in 2025. 722 born since 1990, peaking in the 2010s.
- #6,309 of 45,481
- all-time among boys
- #3,349 of 13,930
- 2025 SSA year
- 722
- born since 1990
- 2010s
- peak decade
Caio's 722 recorded births place it above 86.11% of the 45,481 boys names in the full SSA archive.
The state file records this name in 3 jurisdictions, led by Massachusetts.
How Caio compares
722 Top 37% higher than 63% 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
Caio's all-time total is 96% above the median boys name, and Liam still leads by a wide margin.
| Metric | Caio | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 722 | 369 | 358,536 |
| Peak-year births | 40 | 34 | 22,252 |
Caio's usage pattern, beyond the headline number
Splitting Caio's full recorded timeline at 2008, 70% of its total births fall in the more recent half of the record versus 30% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1991, with just 5 recorded births -- worth weighing against the 2023 peak of 40 to see the full range of the name's swing in popularity.
Caio popularity over time
Annual U.S. births registered with the Social Security Administration · 1990–2025
- Peak year (2023)
- 40
- Annual births at peak, across 36 years of records
Caio by decade
2010s is the heaviest window (250 births, 35% of the file).
2010s was Caio's strongest decade.
250 babies received the name during that ten-year window, about 35% of all-time use.
Caio births by decade
Total births in each ten-year window
- 1990s 73
1990s
73 births
- 2000s
2000s
209 births
- 2010s
2010s
250 births
- 2020s
2020s
190 births
What this shows Peak: 2010s at 250 births (35% of all-time use).
How Caio 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 Caio's total volume
Caio by state
Where Caio concentrates geographically, total births since 1990
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Massachusetts | | 85 | 11.8% |
| #2 | California | | 58 | 8.0% |
| #3 | Florida | | 49 | 6.8% |
85 of 722 births nationwide. Compared to a flat distribution across 3 reporting states.
Frequently Asked Questions
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What to do with Caio's data
- Caio's usage has stayed within range of its 2010s decade-level peak (250 total births) through the 2020s (190) -- a comparatively stable name, not a fading trend.
- Massachusetts records the most Caios (85 births) -- see the full state breakdown if geography matters to your decision. Massachusetts names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Caio
Nearby Names Like Caio
Names with a similar sound, spelling, or feel to Caio
Compare Caio side by side: Caio vs Caiden Caio vs Cairo Caio vs Cain
Related Names
Names with a similar popularity rank to Caio
Nationwide names with similar peak year or record span
Two nationwide peer axes for Caio: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2023)
Similar record span (~35 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, 1990–2025 (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 Caio 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.