Baby Names US
Unisex name ★ peaked 1980

Brook

Gender Unisex · 76% girls Rank 2025 #4,373 Trend ↓ Falling 32%
Rank 2025
#4,373
among girls · ↑1,104 vs 2024
Babies in 2025
47
named Brook · +27% vs 2024
How common
1 in 50,227
girls born in 2025
Peak year
1980
496 babies
All-time total
14,021
#1,598 all-time among girls
First recorded
1915
in Social Security records

Brook popularity over time

14,021 babies have been named Brook since 1915, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.080.150.230.318801900192019401960198020002020GirlsBoys
GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s – 17 17 2 – –
1920s – 6 6 1 -65% –
1930s 5 36 41 4 +583% #4,409
1940s 25 70 95 10 +132% #3,206
1950s 107 168 275 28 +189% #2,987
1960s 308 709 1,017 102 +270% #1,492
1970s 1,857 930 2,787 279 +174% #584
1980s 2,241 593 2,834 283 +2% #503
1990s 3,009 419 3,428 343 +21% #635
2000s 2,051 194 2,245 225 -35% #811
2010s 828 161 989 99 -56% #1,680
2020s (to 2025) 199 88 287 48 -52% #3,556

Where Brook is heading

A five-year projection from the recent trend in births per 1,000 girls (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 girls Implied rank
2026 30 0.02 outside top 500
2027 29 0.02 outside top 500
2028 27 0.02 outside top 500
2029 26 0.02 outside top 500
2030 26 0.02 outside top 500

The story of Brook

Brook is rare for girls in the United States, ranked #4,373 in 2025 with 32 babies given the name. It is currently declining compared with a decade ago.

Since 1915, 14,021 American babies have been named Brook, about 76% girls and 24% boys, making it a genuinely unisex name. Its peak came in 1980, when 496 newborns received the name, the signature sound of the 1980s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Brook stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Brook?

The median living Brook is about 35 years old; half are between 25 and 47. An estimated 13 thousand people named Brook are alive in the United States today.

median 35 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Brook year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 32 #4,373 15 #5,896
2024 23 #5,477 14 #6,237
2023 34 #4,207 17 #5,496
2022 32 #4,395 11 #7,339
2021 36 #4,034 17 #5,373
2020 42 #3,556 14 #6,024
2019 51 #3,134 20 #4,829
2018 42 #3,625 14 #6,082
2017 57 #2,909 14 #6,098
2016 83 #2,289 12 #6,790
2015 71 #2,527 13 #6,384
2014 62 #2,788 15 #5,770
2013 104 #1,919 16 #5,431
2012 119 #1,735 18 #5,066
2011 125 #1,680 17 #5,229
2010 114 #1,798 22 #4,380
2009 139 #1,613 14 #6,141
2008 168 #1,417 19 #4,922
2007 213 #1,190 21 #4,519
2006 195 #1,235 17 #5,103
2005 185 #1,229 19 #4,495
2004 183 #1,216 22 #4,027
2003 243 #960 13 #5,600
2002 194 #1,094 18 #4,343
2001 252 #900 18 #4,322
2000 279 #811 33 #2,747
1995 330 #651 38 #2,144
1990 225 #870 53 #1,568
1985 162 #957 51 #1,358
1980 405 #503 91 #938
1975 173 #800 96 #851
1970 75 #1,390 112 #779
1965 25 #2,413 48 #1,069
1960 12 #3,716 39 #1,252
1955 15 #2,987 18 #1,851
1950 9 #3,693 10 #2,452
1945 – – 10 #2,268
1940 – – 5 #3,508
1935 – – 9 #2,551
1930 – – – –
1925 – – – –
1920 – – – –
1915 – – 5 #3,898
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Famous people named Brook

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Brook Lopez Brook Lopez American basketball player (born 1988) Contemporary
  2. 2 Brook Benton Brook Benton American singer (1931–1988) Contemporary
  3. 3 Brook Lee Brook Lee American beauty pageant winner (born 1971) Contemporary
  4. 4 Brook Taylor Brook Taylor English mathematician 1685–1731 · 17th century

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Brook, drawn from the same Social Security data as the charts above.

How old is the average Brook?

The median living Brook is about 35 years old. Half of all living Brooks are between 25 and 47 years old.

How many people named Brook are alive today?

An estimated 13 thousand people named Brook are alive in the United States, based on 14,021 recorded births and Social Security life tables.

How popular is the name Brook in 2025?

Brook ranked #4,373 among girls' names in the United States in 2025, with 32 babies given the name, according to Social Security Administration data.

How many people are named Brook?

14,021 babies have been named Brook in the United States since 1915, based on Social Security card applications.

When was the name Brook most popular?

Brook peaked in 1980, when 496 newborns received the name.

Is Brook a boy or girl name?

Brook is used for both: about 76% of babies named Brook have been girls and 24% boys.

Is the name Brook rising or falling?

Brook is declining, less popular now than a decade ago.

Will Brook become more popular?

Brook is trending downward. If the recent trend holds, we project roughly 26 girls named Brook in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Who are famous people named Brook?

Well-known people named Brook include Brook Lopez (basketball player), Brook Benton (singer), Brook Lee (celebrity).

Names like Brook

Names that sound and feel close to Brook: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Brook with similar names → More names starting with B →