Cassiopeia: 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	9	1	–	#6,772
1980s	109	11	+1111%	#4,769
1990s	54	5	-50%	#8,599
2000s	50	5	-7%	#9,011
2010s	84	8	+68%	#8,716
2020s (to 2025)	85	14	+69%	#6,471

Decade

Girls

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

1920s

–

1930s

–

1940s

–

1950s

–

1960s

–

1970s

–

#6,772

1980s

109

+1111%

#4,769

1990s

-50%

#8,599

2000s

-7%

#9,011

2010s

+68%

#8,716

2020s (to 2025)

+69%

#6,471

The story of Cassiopeia

Cassiopeia is rare for girls in the United States, ranked #8,977 in 2025 with 11 babies given the name. It is currently rising compared with a decade ago.

Since 1979, 391 American babies have been named Cassiopeia. Its peak came in 2022, when 18 newborns received the name, the signature sound of the 2020s.

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

How old are people named Cassiopeia?

The median living Cassiopeia is about 23 years old; half are between 7 and 37. An estimated 400 people named Cassiopeia 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.

Cassiopeia year by year

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

Year	Girls	Girls rank
2025	11	#8,977
2024	12	#8,555
2023	18	#6,471
2022	18	#6,509
2021	16	#7,026
2020	10	#9,700
2019	11	#9,244
2018	12	#8,716
2017	10	#10,116
2016	7	#13,179
2015	9	#11,079
2014	12	#9,096
2013	5	#17,062
2012	5	#17,405
2011	5	#17,299
2010	8	#12,505
2009	–	–
2008	–	–
2007	5	#18,155
2006	–	–
2005	12	#9,011
2004	8	#11,819
2003	–	–
2002	9	#10,393
2001	6	#13,838
2000	10	#9,291
1995	6	#12,040
1990	9	#8,599
1985	8	#7,662
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 Cassiopeia, drawn from the same Social Security data as the charts above.

How old is the average Cassiopeia?

The median living Cassiopeia is about 23 years old. Half of all living Cassiopeias are between 7 and 37 years old.

How many people named Cassiopeia are alive today?

An estimated 400 people named Cassiopeia are alive in the United States, based on 391 recorded births and Social Security life tables.

What does the name Cassiopeia mean?

From Latin Cassiopēia, from Ancient Greek Κασσιόπεια (Kassiópeia) or Κασσιόπη (Kassiópē).

How popular is the name Cassiopeia in 2025?

Cassiopeia ranked #8,977 among girls' names in the United States in 2025, with 11 babies given the name, according to Social Security Administration data.

How many people are named Cassiopeia?

391 babies have been named Cassiopeia in the United States since 1979, based on Social Security card applications.

When was the name Cassiopeia most popular?

Cassiopeia peaked in 2022, when 18 newborns received the name.

Is Cassiopeia a boy or girl name?

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

Is the name Cassiopeia rising or falling?

Cassiopeia is on the rise, noticeably more popular now than a decade ago.

Cassiopeia

Cassiopeia popularity over time

The story of Cassiopeia

How old are people named Cassiopeia?

Cassiopeia year by year

Frequently asked questions

Names like Cassiopeia