Girls' name · since 1985

Cosima

Since 1985, U.S. Social Security records show 339 babies named Cosima, peaking in 2017. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#14,902 of 72,339
all-time among girls
#6,195 of 17,297
2025 SSA year
339
born since 1985
2010s
peak decade

Yes -- Cosima is the #6195 most popular girls' name in the U.S. today, with 339 recorded since 1985.

Social Security Administration records show Cosima recorded 339 times among girls since 1985, holding rank #6195 nationally today, ahead of 64% of girls, peaking in the 2010s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1985 to 2025.

  • #14,902 of 72,339 all-time among girls
  • #6,195 of 17,297 2025 SSA year
  • 339 born since 1985
  • 2010s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Cosima ranks #14,902 of 72,339 girls' names by all-time recorded births (highest first) and #6,195 of 17,297 among girls' names in 2025. 339 born since 1985, peaking in the 2010s.

#14,902 of 72,339
all-time among girls
#6,195 of 17,297
2025 SSA year
339
born since 1985
2010s
peak decade
0%100%Median name50%64.1%
Cosima vs. every other girls name in current SSA rankings
Above the archive median
All-time archive position

Cosima's 339 recorded births place it above 79.36% of the 72,339 girls names in the full SSA archive.

4 jurisdictions
State-record footprint

The state file records this name in 4 jurisdictions, led by California.

How Cosima compares

339 47th percentile among 17,297 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

Cosima's all-time total is 10% below the median girls name, and Olivia still leads by a wide margin.

Metric Cosima Median girls name (Kyann) #1 girls name (Olivia)
All-time total births 339 376 567,345
Peak-year births 36 21 19,840

Cosima's usage pattern, beyond the headline number

Divide Cosima's SSA record in two at 2014 and the more recent half accounts for 78% of all births, the earlier half the remaining 22%, consistent with a name still gaining ground rather than fading. Its calmest year was 1985, with only 5 births recorded -- set against the 2017 peak of 36, that's the full swing in one name's fortunes.

Cosima popularity over time

Annual U.S. births registered with the Social Security Administration · 1985–2025

Outside the top 1,000
Peak year (2017)
36
Annual births at peak, across 41 years of records
010203040 198520022007201220152018202120242025 19

Cosima by decade

2010s is the heaviest window (205 births, 60% of the file).

2010s was Cosima's strongest decade.

205 babies received the name during that ten-year window, about 60% of all-time use.

Cosima births by decade

Total births in each ten-year window

births

What this shows Peak: 2010s at 205 births (60% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Cosima by state

Where Cosima concentrates geographically, total births since 1985

Geographically diffuse
Top 4 states by recorded births for the name Cosima
Rank State Visual share Births Share of total
#1 California
20 5.9%
#2 New York
17 5.0%
#3 Texas
6 1.8%
#4 Washington
6 1.8%
California share of Cosima's total US births 5.9%
Even split

20 of 339 births nationwide. Compared to a flat distribution across 4 reporting states.

Frequently Asked Questions

How popular is the name Cosima?
Cosima has been given to 339 babies in the U.S. since 1985, according to SSA data. Its archive ordinal is #14,902 of 72,339 among girls' names (total births, highest first). Among girls in 2025, it is #6,195 of 17,297. 36 babies were born in 2017, its single highest year.
Where does Cosima sit in the SSA name archive?
According to the U.S. Social Security Administration, Cosima ranks #14,902 of 72,339 girls' names by all-time recorded births (highest first) and #6,195 of 17,297 among girls' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Cosima most popular?
Cosima was most popular in the 2010s decade with 205 total births. The single peak year was 2017.
Where is Cosima most popular?
The top states for the name Cosima are California (20 births), New York (17 births), Texas (6 births).
How long has the name Cosima been used?
Cosima has been recorded in Social Security data since 1985, spanning 41 years of data through 2025.
What names are similar to Cosima?
Names with a similar sound or spelling include Cosette, Costella, Cosandra, Cossette, and 4 more. These share a common prefix and are also used for girls.

What to do with Cosima's data

  • Cosima's usage has stayed within range of its 2010s decade-level peak (205 total births) through the 2020s (92) -- a comparatively stable name, not a fading trend.
  • California records the most Cosimas (20 births) -- see the full state breakdown if geography matters to your decision. California names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Cosima

Nearby Names Like Cosima

Names with a similar sound, spelling, or feel to Cosima

Names with a similar popularity rank to Cosima

Nationwide names with similar peak year or record span

Two nationwide peer axes for Cosima: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 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, 1985–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

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 Cosima 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 August 2026.