Boys' name · since 1915
Killian
Since 1915, U.S. Social Security records show 16,219 babies named Killian, peaking in 2017. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- #930 of 45,481
- all-time among boys
- #419 of 13,930
- 2025 SSA year
- 16,219
- born since 1915
- 2010s
- peak decade
16,219 babies have been named Killian since 1915, making it today's #419 boys' name.
Killian has 16,219 recorded births among boys since 1915, per the U.S. Social Security Administration, ranked #419 as of the latest data, more common than 97% 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 1915 to 2025.
- #930 of 45,481 all-time among boys
- #419 of 13,930 2025 SSA year
- 16,219 born since 1915
- 2010s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Killian ranks #930 of 45,481 boys' names by all-time recorded births (highest first) and #419 of 13,930 among boys' names in 2025. 16,219 born since 1915, peaking in the 2010s.
- #930 of 45,481
- all-time among boys
- #419 of 13,930
- 2025 SSA year
- 16,219
- born since 1915
- 2010s
- peak decade
Killian's 16,219 recorded births place it above 97.95% of the 45,481 boys names in the full SSA archive.
50 jurisdictions carry state-level records, led by California.
How Killian compares
16,219 Top 7% higher than 93% 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
Killian's all-time total is 44x the median boys name, and Liam still leads by a wide margin.
| Metric | Killian | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 16,219 | 369 | 358,536 |
| Peak-year births | 1,506 | 34 | 22,252 |
Killian's usage pattern, beyond the headline number
Divide Killian's SSA record in two at 2003 and the more recent half accounts for 90% of all births, the earlier half the remaining 10%, consistent with a name still gaining ground rather than fading. Its calmest year was 1915, with only 5 births recorded -- set against the 2017 peak of 1,506, that's the full swing in one name's fortunes.
Killian popularity over time - boys
Annual U.S. births registered with the Social Security Administration · 1915–2025
- Peak year (2017)
- 1,506
- Annual births at peak, across 111 years of records
Killian popularity over time - girls
615 total births recorded since 1986 (Killian as girls' name)
Killian by decade
2010s is the heaviest window (7,883 births, 49% of the file).
2010s was Killian's strongest decade.
7,883 babies received the name during that ten-year window, about 49% of all-time use.
Killian births by decade
Total births in each ten-year window
- 1910s 5
1910s
5 births
- 1920s 5
1920s
5 births
- 1980s 132
1980s
132 births
- 1990s 1,090
1990s
1,090 births
- 2000s 1,824
2000s
1,824 births
- 2010s
2010s
7,883 births
- 2020s
2020s
5,280 births
What this shows Peak: 2010s at 7,883 births (49% of all-time use).
How Killian 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 Killian's total volume
Killian by state
Where Killian concentrates geographically, total births since 1915
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 1,260 | 7.8% |
| #2 | Texas | | 1,053 | 6.5% |
| #3 | Florida | | 956 | 5.9% |
| #4 | New York | | 792 | 4.9% |
| #5 | Pennsylvania | | 769 | 4.7% |
| #6 | Ohio | | 728 | 4.5% |
| #7 | Washington | | 504 | 3.1% |
| #8 | North Carolina | | 499 | 3.1% |
1,260 of 16,219 births nationwide. Compared to a flat distribution across 50 reporting states.
Killian appears in 50 states. Explore state details →
Frequently Asked Questions
How popular is the name Killian? ▼
Where does Killian sit in the SSA name archive? ▼
When was Killian most popular? ▼
Where is Killian most popular? ▼
How long has the name Killian been used? ▼
What names are similar to Killian? ▼
What to do with Killian's data
- Killian's usage has stayed within range of its 2010s decade-level peak (7,883 total births) through the 2020s (5,280) -- a comparatively stable name, not a fading trend.
- California records the most Killians (1,260 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 Killian
Nearby Names Like Killian
Names with a similar sound, spelling, or feel to Killian
Compare Killian side by side: Killian vs Kilian Killian vs Kiley Killian vs Kile
Related Names
Names with a similar popularity rank to Killian
Nationwide names with similar peak year or record span
Two nationwide peer axes for Killian: 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 (~110 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, 1915–2025 (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 Killian 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.