Unisex name · since 1975
Dillan
Dillan has 6,994 recorded births since 1975 in federal Social Security data, most heavily in 1992 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1,461 of 45,481
- all-time among boys
- #3,880 of 13,930
- 2025 SSA year
- 6,994
- born since 1975
- 2000s
- peak decade
Dillan currently ranks #3880 among unisex names in America, with 6,994 babies recorded since 1975.
Dillan has 6,994 recorded births among boys since 1975, per the U.S. Social Security Administration, ranked #3880 as of the latest data, more common than 72% of boys, busiest in the 2000s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1975 to 2025.
- #1,461 of 45,481 all-time among boys
- #3,880 of 13,930 2025 SSA year
- 6,994 born since 1975
- 2000s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Dillan ranks #1,461 of 45,481 boys' names by all-time recorded births (highest first) and #3,880 of 13,930 among boys' names in 2025. 6,994 born since 1975, peaking in the 2000s.
- #1,461 of 45,481
- all-time among boys
- #3,880 of 13,930
- 2025 SSA year
- 6,994
- born since 1975
- 2000s
- peak decade
Dillan's 6,994 recorded births place it above 96.78% of the 45,481 boys names in the full SSA archive.
38 jurisdictions carry state-level records, led by California.
How Dillan compares
6,994 Top 11% higher than 89% 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
Dillan's all-time total is 19x the median boys name, and Liam still leads by a wide margin.
| Metric | Dillan | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 6,994 | 369 | 358,536 |
| Peak-year births | 341 | 34 | 22,252 |
Dillan's usage pattern, beyond the headline number
Dillan splits its recorded history at 2002: 52% of all births land in the more recent half, 48% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1975 (5 births) -- compare that against the 1992 peak of 341 for a sense of just how much the name's popularity has swung.
Dillan popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1975–2025
- Peak year (1992)
- 341
- Annual births at peak, across 51 years of records
Dillan popularity over time - girls
393 total births recorded since 1993 (Dillan as girls' name)
Dillan by decade
2000s is the heaviest window (2,703 births, 39% of the file).
2000s was Dillan's strongest decade.
2,703 babies received the name during that ten-year window, about 39% of all-time use.
Dillan births by decade
Total births in each ten-year window
- 1970s 10
1970s
10 births
- 1980s 153
1980s
153 births
- 1990s
1990s
2,643 births
- 2000s
2000s
2,703 births
- 2010s
2010s
1,205 births
- 2020s 280
2020s
280 births
What this shows Peak: 2000s at 2,703 births (39% of all-time use).
How Dillan 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 Dillan's total volume
Dillan by state
Where Dillan concentrates geographically, total births since 1975
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 673 | 9.6% |
| #2 | Texas | | 668 | 9.6% |
| #3 | Florida | | 398 | 5.7% |
| #4 | Georgia | | 263 | 3.8% |
| #5 | New York | | 229 | 3.3% |
| #6 | Pennsylvania | | 228 | 3.3% |
| #7 | Ohio | | 219 | 3.1% |
| #8 | Louisiana | | 208 | 3.0% |
673 of 6,994 births nationwide. Compared to a flat distribution across 38 reporting states.
Dillan appears in 38 states. Explore state details →
Frequently Asked Questions
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What to do with Dillan's data
- Dillan's decade-level peak was the 2000s (2,703 total births); usage has since declined to 280 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Dillans (673 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 Dillan
Nearby Names Like Dillan
Names with a similar sound, spelling, or feel to Dillan
Compare Dillan side by side: Dillan vs Dillon Dillan vs Dilan Dillan vs Dillard
Related Names
Names with a similar popularity rank to Dillan
Nationwide names with similar peak year or record span
Two nationwide peer axes for Dillan: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1992)
Similar record span (~50 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, 1975–2025 (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 Dillan 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.