Year 2010
- Rank: 248
- Girls named Cassidy: 1,277
- Percent of Girls named Cassidy: 0.0658%
Year 2009
- Rank: 244
- Girls named Cassidy: 1,350
- Percent of Girls named Cassidy: 0.0674%
Year 2008
- Rank: 228
- Girls named Cassidy: 1,471
- Percent of Girls named Cassidy: 0.0716%
Year 2007
- Rank: 208
- Girls named Cassidy: 1,645
- Percent of Girls named Cassidy: 0.0781%
Year 2006
- Rank: 198
- Girls named Cassidy: 1,768
- Percent of Girls named Cassidy: 0.0849%
Year 2005
- Rank: 189
- Girls named Cassidy: 1,828
- Percent of Girls named Cassidy: 0.0904%
Year 2004
- Rank: 168
- Girls named Cassidy: 2,005
- Percent of Girls named Cassidy: 0.0996%
Year 2003
- Rank: 150
- Girls named Cassidy: 2,233
- Percent of Girls named Cassidy: 0.1115%
Year 2002
- Rank: 131
- Girls named Cassidy: 2,632
- Percent of Girls named Cassidy: 0.1335%
Year 2001
- Rank: 107
- Girls named Cassidy: 3,029
- Percent of Girls named Cassidy: 0.1532%
Year 2000
- Rank: 107
- Girls named Cassidy: 3,161
- Percent of Girls named Cassidy: 0.1586%
Year 1999
- Rank: 99
- Girls named Cassidy: 3,393
- Percent of Girls named Cassidy: 0.1745%
Year 1998
- Rank: 113
- Girls named Cassidy: 3,044
- Percent of Girls named Cassidy: 0.1572%
Year 1997
- Rank: 105
- Girls named Cassidy: 3,141
- Percent of Girls named Cassidy: 0.1647%
Year 1996
- Rank: 109
- Girls named Cassidy: 2,845
- Percent of Girls named Cassidy: 0.1485%
