Boys' name · since 1960
Thelonious
467 babies named Thelonious in U.S. Social Security records since 1960, with the highest year being 2017. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #8,219 of 45,481
- all-time among boys
- #6,872 of 13,930
- 2025 SSA year
- 467
- born since 1960
- 2010s
- peak decade
Yes -- Thelonious is the #6872 most popular boys' name in the U.S. today, with 467 recorded since 1960.
Thelonious has 467 recorded births among boys since 1960, per the U.S. Social Security Administration, ranked #6872 as of the latest data, more common than 51% 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 1960 to 2025.
- #8,219 of 45,481 all-time among boys
- #6,872 of 13,930 2025 SSA year
- 467 born since 1960
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Thelonious ranks #8,219 of 45,481 boys' names by all-time recorded births (highest first) and #6,872 of 13,930 among boys' names in 2025. 467 born since 1960, peaking in the 2010s.
- #8,219 of 45,481
- all-time among boys
- #6,872 of 13,930
- 2025 SSA year
- 467
- born since 1960
- 2010s
- peak decade
Thelonious's 467 recorded births place it above 81.92% of the 45,481 boys names in the full SSA archive.
The state file records this name in 1 jurisdictions, led by California.
How Thelonious compares
467 Top 46% higher than 54% 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
Thelonious's all-time total is 27% above the median boys name, and Liam still leads by a wide margin.
| Metric | Thelonious | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 467 | 369 | 358,536 |
| Peak-year births | 23 | 34 | 22,252 |
Thelonious's usage pattern, beyond the headline number
Thelonious splits its recorded history at 2005: 67% of all births land in the more recent half, 33% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1960 (5 births) -- compare that against the 2017 peak of 23 for a sense of just how much the name's popularity has swung.
Thelonious popularity over time
Annual U.S. births registered with the Social Security Administration · 1960–2025
- Peak year (2017)
- 23
- Annual births at peak, across 66 years of records
Thelonious by decade
2010s is the heaviest window (170 births, 36% of the file).
2010s was Thelonious's strongest decade.
170 babies received the name during that ten-year window, about 36% of all-time use.
Thelonious births by decade
Total births in each ten-year window
- 1960s 37
1960s
37 births
- 1970s 24
1970s
24 births
- 1980s 14
1980s
14 births
- 1990s 36
1990s
36 births
- 2000s
2000s
90 births
- 2010s
2010s
170 births
- 2020s
2020s
96 births
What this shows Peak: 2010s at 170 births (36% of all-time use).
Thelonious by state
Where Thelonious concentrates geographically, total births since 1960
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 27 | 5.8% |
27 of 467 births nationwide.
Frequently Asked Questions
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What to do with Thelonious's data
- Thelonious's usage has stayed within range of its 2010s decade-level peak (170 total births) through the 2020s (96) -- a comparatively stable name, not a fading trend.
- California records the most Theloniouss (27 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 Thelonious
Nearby Names Like Thelonious
Names with a similar sound, spelling, or feel to Thelonious
Compare Thelonious side by side: Thelonious vs Theodore Thelonious vs Theo Thelonious vs Theron
Related Names
Names with a similar popularity rank to Thelonious
Nationwide names with similar peak year or record span
Two nationwide peer axes for Thelonious: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2017)
Similar record span (~65 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, 1960–2025 (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 Thelonious 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.