Unisex name · since 1931
Brook
10,630 babies named Brook in U.S. Social Security records since 1931, with the highest year being 1980. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #1,598 of 72,339
- all-time among girls
- #4,376 of 17,297
- 2025 SSA year
- 10,630
- born since 1931
- 1990s
- peak decade
Brook currently ranks #4376 among unisex names in America, with 10,630 babies recorded since 1931.
According to the U.S. Social Security Administration, Brook has been recorded 10,630 times among girls since 1931, currently ranked #4376 nationally and more common than 75% of girls, with its heaviest use in the 1990s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1931 to 2025.
- #1,598 of 72,339 all-time among girls
- #4,376 of 17,297 2025 SSA year
- 10,630 born since 1931
- 1990s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Brook ranks #1,598 of 72,339 girls' names by all-time recorded births (highest first) and #4,376 of 17,297 among girls' names in 2025. 10,630 born since 1931, peaking in the 1990s.
- #1,598 of 72,339
- all-time among girls
- #4,376 of 17,297
- 2025 SSA year
- 10,630
- born since 1931
- 1990s
- peak decade
Brook's 10,630 recorded births place it above 97.79% of the 72,339 girls names in the full SSA archive.
41 jurisdictions carry state-level records, led by California.
How Brook compares
10,630 Top 9% higher than 91% of 17,297 names currently given to girls
Based on all-time total births among currently-ranked girls 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
Brook's all-time total is 28x the median girls name, and Olivia still leads by a wide margin.
| Metric | Brook | Median girls name (Kyann) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 10,630 | 376 | 567,345 |
| Peak-year births | 405 | 21 | 19,840 |
Brook's usage pattern, beyond the headline number
Brook splits its recorded history at 1986: 64% of all births land in the more recent half, 36% in the earlier half, a lean toward present-day use rather than a passing spike. The single quietest year was 1931 (5 births) -- compare that against the 1980 peak of 405 for a sense of just how much the name's popularity has swung.
Brook popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1931–2025
- Peak year (1980)
- 405
- Annual births at peak, across 95 years of records
Brook popularity over time - boys
3,391 total births recorded since 1915 (Brook as boys' name)
Brook by decade
1990s is the heaviest window (3,009 births, 28% of the file).
1990s was Brook's strongest decade.
3,009 babies received the name during that ten-year window, about 28% of all-time use.
Brook births by decade
Total births in each ten-year window
- 1930s 5
1930s
5 births
- 1940s 25
1940s
25 births
- 1950s 107
1950s
107 births
- 1960s 308
1960s
308 births
- 1970s
1970s
1,857 births
- 1980s
1980s
2,241 births
- 1990s
1990s
3,009 births
- 2000s
2000s
2,051 births
- 2010s 828
2010s
828 births
- 2020s 199
2020s
199 births
What this shows Peak: 1990s at 3,009 births (28% of all-time use).
How Brook compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Brook's total volume
Brook by state
Where Brook concentrates geographically, total births since 1931
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 979 | 9.2% |
| #2 | Texas | | 657 | 6.2% |
| #3 | Michigan | | 517 | 4.9% |
| #4 | Ohio | | 495 | 4.7% |
| #5 | Indiana | | 339 | 3.2% |
| #6 | Pennsylvania | | 324 | 3.0% |
| #7 | Illinois | | 316 | 3.0% |
| #8 | Florida | | 315 | 3.0% |
979 of 10,630 births nationwide. Compared to a flat distribution across 41 reporting states.
Brook appears in 41 states. Explore state details →
Frequently Asked Questions
How popular is the name Brook? ▼
Where does Brook sit in the SSA name archive? ▼
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What to do with Brook's data
- Brook's decade-level peak was the 1990s (3,009 total births); usage has since declined to 199 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Brooks (979 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 Brook
Nearby Names Like Brook
Names with a similar sound, spelling, or feel to Brook
Compare Brook side by side: Brook vs Brooke Brook vs Brooklyn Brook vs Brooklynn
Related Names
Names with a similar popularity rank to Brook
Nationwide names with similar peak year or record span
Two nationwide peer axes for Brook: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1980)
Similar record span (~94 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, 1931–2025 (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 Brook 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.