The baby name Brook appears in baby name data for the United States from 1957 to 2020. It was most popular in 1980 with 456 babies given the name.
In the later years of this period, Brook has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1957 | 20 |
| 1960 | 5 |
| 1961 | 66 |
| 1962 | 23 |
| 1963 | 17 |
| 1964 | 7 |
| 1966 | 20 |
| 1967 | 10 |
| 1968 | 10 |
| 1968 | 10 |
| 1969 | 5 |
| 1970 | 17 |
| 1970 | 38 |
| 1971 | 47 |
| 1971 | 45 |
| 1972 | 57 |
| 1972 | 14 |
| 1973 | 82 |
| 1973 | 25 |
| 1974 | 136 |
| 1974 | 24 |
| 1975 | 124 |
| 1975 | 44 |
| 1976 | 229 |
| 1976 | 21 |
| 1977 | 241 |
| 1977 | 40 |
| 1978 | 247 |
| 1978 | 10 |
| 1979 | 319 |
| 1979 | 21 |
| 1980 | 456 |
| 1980 | 19 |
| 1981 | 398 |
| 1982 | 237 |
| 1982 | 12 |
| 1983 | 122 |
| 1983 | 5 |
| 1984 | 131 |
| 1985 | 103 |
| 1986 | 111 |
| 1986 | 6 |
| 1987 | 122 |
| 1987 | 5 |
| 1988 | 166 |
| 1989 | 229 |
| 1989 | 5 |
| 1990 | 220 |
| 1990 | 8 |
| 1991 | 280 |
| 1991 | 15 |
| 1992 | 323 |
| 1993 | 351 |
| 1993 | 5 |
| 1994 | 403 |
| 1994 | 11 |
| 1995 | 325 |
| 1996 | 353 |
| 1996 | 5 |
| 1997 | 327 |
| 1998 | 369 |
| 1999 | 256 |
| 2000 | 268 |
| 2001 | 213 |
| 2002 | 138 |
| 2003 | 174 |
| 2004 | 173 |
| 2005 | 141 |
| 2006 | 147 |
| 2007 | 166 |
| 2008 | 117 |
| 2009 | 60 |
| 2010 | 46 |
| 2011 | 34 |
| 2012 | 47 |
| 2013 | 26 |
| 2015 | 20 |
| 2016 | 55 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 6 |
| 2020 | 10 |