Girls' name · since 2009
Trillium
Trillium has 64 recorded births since 2009 in federal Social Security data, most heavily in 2013 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #32,212 of 72,339
- all-time among girls
- 64
- born since 2009
- 2010s
- peak decade
Trillium is not among the current top-ranked girls names; 64 have been recorded since 2009.
Social Security Administration records show Trillium recorded 64 times among girls since 2009, though it doesn't currently rank among the most-used girls names, 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 2009 to 2024.
- #32,212 of 72,339 all-time among girls
- 64 born since 2009
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Trillium ranks #32,212 of 72,339 girls' names by all-time recorded births (highest first). 64 born since 2009, peaking in the 2010s.
- #32,212 of 72,339
- all-time among girls
- 64
- born since 2009
- 2010s
- peak decade
Trillium's 64 recorded births place it above 55.45% of the 72,339 girls names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
Trillium's usage pattern, beyond the headline number
Divide Trillium's SSA record in two at 2015 and the more recent half accounts for 47% of all births, the earlier half the remaining 53%, a genuinely balanced usage pattern. Its calmest year was 2009, with only 5 births recorded -- set against the 2013 peak of 11, that's the full swing in one name's fortunes.
Trillium popularity over time
Annual U.S. births registered with the Social Security Administration · 2009–2024
- Peak year (2013)
- 11
- Annual births at peak, across 16 years of records
Trillium by decade
2010s is the heaviest window (45 births, 70% of the file).
2010s was Trillium's strongest decade.
45 babies received the name during that ten-year window, about 70% of all-time use.
Trillium births by decade
Total births in each ten-year window
- 2000s 5
2000s
5 births
- 2010s
2010s
45 births
- 2020s 14
2020s
14 births
What this shows Peak: 2010s at 45 births (70% of all-time use).
Frequently Asked Questions
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What to do with Trillium's data
- Trillium's decade-level peak was the 2010s (45 total births); usage has since declined to 14 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Trillium
Nearby Names Like Trillium
Names with a similar sound, spelling, or feel to Trillium
Compare Trillium side by side: Trillium vs Trinity Trillium vs Trisha Trillium vs Tricia
Related Names
Names with a similar number of total births
Nationwide names with similar peak year or record span
Two nationwide peer axes for Trillium: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~2013)
Similar record span (~15 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, 2009–2024 (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 Trillium 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.