Cassidi: Name Popularity, History & Rankings (1880

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	Per year	Change	Best rank
1880s	–	–	–	–
1890s	–	–	–	–
1900s	–	–	–	–
1910s	–	–	–	–
1920s	–	–	–	–
1930s	–	–	–	–
1940s	–	–	–	–
1950s	–	–	–	–
1960s	–	–	–	–
1970s	14	1	–	#7,406
1980s	129	13	+821%	#3,716
1990s	300	30	+133%	#2,705
2000s	273	27	-9%	#2,955
2010s	135	14	-51%	#6,067
2020s (to 2025)	12	2	-85%	#8,502

Decade

Girls

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

1920s

–

1930s

–

1940s

–

1950s

–

1960s

–

1970s

–

#7,406

1980s

129

+821%

#3,716

1990s

300

+133%

#2,705

2000s

273

-9%

#2,955

2010s

135

-51%

#6,067

2020s (to 2025)

-85%

#8,502

The story of Cassidi

Cassidi is not currently in use for newborns in the United States: fewer than five babies received the name in 2025. Its story lives in the historical record below.

Since 1977, 863 American babies have been named Cassidi. Its peak came in 1999, when 51 newborns received the name, the signature sound of the 1990s.

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 Cassidi stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Cassidi?

The median living Cassidi is about 26 years old; half are between 19 and 31. An estimated 900 people named Cassidi are alive in the United States today.

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

Cassidi year by year

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

Year	Girls	Girls rank
2025	–	–
2024	–	–
2023	–	–
2022	–	–
2021	–	–
2020	12	#8,502
2019	10	#9,878
2018	20	#6,067
2017	15	#7,533
2016	11	#9,538
2015	7	#13,290
2014	15	#7,739
2013	15	#7,837
2012	10	#10,598
2011	16	#7,508
2010	16	#7,601
2009	23	#5,929
2008	20	#6,608
2007	10	#10,986
2006	26	#5,264
2005	22	#5,632
2004	22	#5,607
2003	24	#5,116
2002	45	#3,157
2001	33	#3,876
2000	48	#2,955
1995	32	#3,430
1990	15	#5,870
1985	21	#3,871
1980	–	–
1975	–	–
1970	–	–
1965	–	–
1960	–	–
1955	–	–
1950	–	–
1945	–	–
1940	–	–
1935	–	–
1930	–	–
1925	–	–
1920	–	–
1915	–	–
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

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

How old is the average Cassidi?

The median living Cassidi is about 26 years old. Half of all living Cassidis are between 19 and 31 years old.

How many people named Cassidi are alive today?

An estimated 900 people named Cassidi are alive in the United States, based on 863 recorded births and Social Security life tables.

What does the name Cassidi mean?

Spelling variant of Cassidy.

How popular is the name Cassidi in 2025?

Cassidi did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.

How many people are named Cassidi?

863 babies have been named Cassidi in the United States since 1977, based on Social Security card applications.

When was the name Cassidi most popular?

Cassidi peaked in 1999, when 51 newborns received the name.

Is Cassidi a boy or girl name?

Cassidi is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Cassidi rising or falling?

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

Cassidi

Cassidi popularity over time

The story of Cassidi

How old are people named Cassidi?

Cassidi year by year

Frequently asked questions

Names like Cassidi