Kirby — #2550 US boys' name
14,497 babies named Kirby in U.S. Social Security records since 1881, with the highest year being 1957. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
More common than 82% of names given to boys today.
21% of everyone ever named Kirby was born in this single decade.
358 babies were named Kirby in 1957 — its busiest year on record.
What the Data Says About Kirby
The Social Security Administration has registered 14,497 babies named Kirby between 1881 and 2024, spanning 144 consecutive years of U.S. birth records. As a boy's name, Kirby currently holds the #2550 rank among boys for 2024. The name reached its historical peak in 1957, when 358 babies received it in a single year. Kirby is classified as unisex in SSA records: the opposite-sex variant accounts for 3,898 additional births since 1917.
Decade-level aggregation shows that Kirby performed strongest in the 1950s, accumulating 3,009 births during that ten-year window. Across the 15 decades of recorded activity, Kirby shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Texas, which accounts for 1,383 births — the largest state-level total in the dataset — followed by Louisiana and California. In total, SSA state-level files list Kirby in 43 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Kirby in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 14,497 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.
Kirby at a glance
Outside the top 1,000Peak year
Current rank
Active since
Kirby popularity over time — boys
Annual U.S. births registered with the Social Security Administration · 2024–1881
- Peak year (1957)
- 358
- Annual births at peak — across 144 years of records
Currently ranks #2550 among boys.
14,497 total births across 144 years of SSA records. Peaked in 1957 with 358 births in a single year.
Kirby popularity over time — girls
3,898 total births recorded since 1917 (Kirby as girls' name)
Unisex use is substantial
The girls' variant of Kirby accounts for 21% of total recorded use across both genders.
Kirby by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1950s
- 3,009 births that decade — 21% of Kirby's all-time total
Kirby decade highlights
- Peak decade 3,009 births
- Runner-up 2,352 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1950s was Kirby's strongest decade
3,009 babies received the name during that ten-year window — about 21% of all-time use.
Kirby by state
Where Kirby concentrates geographically — total births since 1881
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Texas | | 1,383 | 9.5% |
| #2 | Louisiana | | 746 | 5.1% |
| #3 | California | | 686 | 4.7% |
| #4 | North Carolina | | 590 | 4.1% |
| #5 | Illinois | | 456 | 3.1% |
| #6 | Pennsylvania | | 413 | 2.8% |
| #7 | Ohio | | 384 | 2.6% |
| #8 | Missouri | | 328 | 2.3% |
1,383 of 14,497 births nationwide. Compared to a flat distribution across 43 reporting states.
Top 5 states
- Texas 9.5% of nationwide
- Louisiana 5.1% of nationwide
- California 4.7% of nationwide
- North Carolina 4.1% of nationwide
- Illinois 3.1% of nationwide
Recorded in 43 of 51 SSA jurisdictions
Texas accounts for 9.5% of all recorded births nationwide — a relatively diffuse profile for this name.
Kirby appears in 43 states. Explore state details →
Frequently Asked Questions
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Keep exploring Kirby
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Data Sources
Data as of 2024. Source: U.S. Social Security Administration (SSA).
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1881–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.
State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.