The baby name Cassidy appears in baby name data for the United States from 1973 to 2024. It was most popular in 1998 with 3,934 babies given the name.
In the later years of this period, Cassidy has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1973 | 5 |
| 1974 | 5 |
| 1975 | 12 |
| 1976 | 5 |
| 1977 | 19 |
| 1977 | 21 |
| 1978 | 61 |
| 1978 | 5 |
| 1979 | 40 |
| 1979 | 12 |
| 1980 | 48 |
| 1981 | 104 |
| 1981 | 18 |
| 1982 | 190 |
| 1982 | 14 |
| 1983 | 372 |
| 1983 | 91 |
| 1984 | 456 |
| 1984 | 103 |
| 1985 | 527 |
| 1985 | 120 |
| 1986 | 390 |
| 1986 | 20 |
| 1987 | 452 |
| 1987 | 19 |
| 1988 | 468 |
| 1988 | 35 |
| 1989 | 590 |
| 1989 | 60 |
| 1990 | 551 |
| 1990 | 52 |
| 1991 | 778 |
| 1991 | 19 |
| 1992 | 755 |
| 1992 | 54 |
| 1993 | 1,179 |
| 1993 | 23 |
| 1994 | 2,811 |
| 1994 | 35 |
| 1995 | 3,459 |
| 1995 | 6 |
| 1996 | 3,293 |
| 1996 | 12 |
| 1997 | 3,765 |
| 1997 | 5 |
| 1998 | 3,934 |
| 1999 | 3,748 |
| 1999 | 6 |
| 2000 | 3,606 |
| 2000 | 5 |
| 2001 | 3,318 |
| 2002 | 2,902 |
| 2003 | 2,566 |
| 2004 | 2,571 |
| 2004 | 20 |
| 2005 | 2,343 |
| 2006 | 2,213 |
| 2006 | 7 |
| 2007 | 2,071 |
| 2008 | 1,752 |
| 2008 | 25 |
| 2009 | 1,505 |
| 2009 | 18 |
| 2010 | 1,331 |
| 2011 | 1,291 |
| 2011 | 5 |
| 2012 | 1,247 |
| 2012 | 5 |
| 2013 | 1,413 |
| 2013 | 15 |
| 2014 | 1,370 |
| 2014 | 15 |
| 2015 | 1,349 |
| 2016 | 1,310 |
| 2016 | 12 |
| 2017 | 1,191 |
| 2017 | 15 |
| 2018 | 910 |
| 2018 | 36 |
| 2019 | 923 |
| 2019 | 5 |
| 2020 | 842 |
| 2021 | 700 |
| 2022 | 717 |
| 2022 | 6 |
| 2023 | 715 |
| 2024 | 661 |
| 2024 | 10 |