Total births
391
Girls' name · since 1979
Cassiopeia
391 babies named Cassiopeia in U.S. Social Security records since 1979, with the highest year being 2022. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #8583
- among girls today
- 391
- born since 1979
- 1980s
- peak decade
- 52%
- more common than other girls
Cassiopeia currently ranks #8583 among girls' names in America, with 391 babies recorded since 1979.
Cassiopeia has 391 recorded births among girls since 1979, per the U.S. Social Security Administration, ranked #8583 as of the latest data, more common than 52% of girls, busiest in the 1980s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1979 to 2025.
- #8583 among girls today
- 391 born since 1979
- 1980s peak decade
- 52% more common than other girls
Data updated Jul 2026
The verdict
Cassiopeia is currently the #8583 girls' name in America, more common than 52% of girls - 391 born since 1979, peaking in the 1980s.
- #8583
- among girls today
- 391
- born since 1979
- 1980s
- peak decade
- 52%
- more common than other girls
Cassiopeia vs. every other girls name in current SSA rankings
#8583
of 17,726 girls in use
More common than 52% of names given to girls today.
1980s
Peak decade
28% of everyone ever named Cassiopeia was born in this single decade.
2022
Single peak year
18 babies were named Cassiopeia in 2022 - its busiest year on record.
How Cassiopeia compares
391 Top 49% higher than 51% of 17,726 names currently given to girls
Based on all-time total births among currently-ranked girls names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Cassiopeia's all-time total is 2% above the median girls name, and Olivia still leads by a wide margin.
| Metric | Cassiopeia | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 391 | 382 | 567,345 |
| Peak-year births | 18 | 48 | 19,840 |
Cassiopeia's usage pattern, beyond the headline number
Splitting Cassiopeia's full recorded timeline at 2002, 52% of its total births fall in the more recent half of the record versus 48% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1992, with just 5 recorded births -- worth weighing against the 2022 peak of 18 to see the full range of the name's swing in popularity.
Cassiopeia at a glance
Outside the top 1,000Peak year
2022
Current rank
#8,583
Active since
1979
Cassiopeia popularity over time
Annual U.S. births registered with the Social Security Administration · 1979–2025
- Peak year (2022)
- 18
- Annual births at peak, across 47 years of records
Cassiopeia by decade
Total births in each ten-year window, peak vs trough at a glance
1980s was Cassiopeia's strongest decade.
109 babies received the name during that ten-year window, about 28% of all-time use.
Cassiopeia births by decade
Total births in each ten-year window
- 1970s 9
1970s
9 births
- 1980s
1980s
109 births
- 1990s
1990s
54 births
- 2000s
2000s
50 births
- 2010s
2010s
84 births
- 2020s
2020s
85 births
What this shows Peak: 1980s at 109 births (28% of all-time use).
Frequently Asked Questions
How popular is the name Cassiopeia? ▼
Since 1979, Social Security records show 391 babies named Cassiopeia. Today it holds rank #8583 among girls. Its busiest year on record was 2022, with 18 births.
When was Cassiopeia most popular? ▼
Cassiopeia was most popular in the 1980s decade with 109 total births. The single peak year was 2022.
How long has the name Cassiopeia been used? ▼
Records for Cassiopeia go back to 1979, giving 47 years of history through 2025.
What names are similar to Cassiopeia? ▼
Names with a similar sound or spelling include Cassandra, Casey, Cassidy, Cassie, and 4 more. These share a common prefix and are also used for girls.
What to do with Cassiopeia's data
- Cassiopeia's usage has stayed within range of its 1980s decade-level peak (109 total births) through the 2020s (85) -- a comparatively stable name, not a fading trend.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Cassiopeia
Nearby Names Like Cassiopeia
Names with a similar sound, spelling, or feel to Cassiopeia
Cassandra Girl
#615 171,008 births
Casey Girl
#1054 78,100 births
Cassidy Girl
#478 60,848 births
Cassie Girl
#1270 46,642 births
Casandra Girl
#8506 15,784 births
Compare Cassiopeia side by side: Cassiopeia vs Cassandra Cassiopeia vs Casey Cassiopeia vs Cassidy
Related Names
Names with a similar popularity rank to Cassiopeia
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1979–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Cassiopeia: #8583 Girls' Name - 391 Births, Peak 2022." NameAlmanac. Accessed via https://namealmanac.com/name/cassiopeia. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Cassiopeia draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.