Total births
120
Unisex name · since 1999
Coi
120 babies named Coi in U.S. Social Security records since 1999, with the highest year being 2023. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #5726
- among girls today
- 120
- born since 1999
- 2020s
- peak decade
- 68%
- more common than other girls
Yes -- Coi is the #5726 most popular unisex name in the U.S. today, with 120 recorded since 1999.
Coi has 120 recorded births among girls since 1999, per the U.S. Social Security Administration, ranked #5726 as of the latest data, more common than 68% of girls, busiest in the 2020s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1999 to 2025.
- #5726 among girls today
- 120 born since 1999
- 2020s peak decade
- 68% more common than other girls
Data updated Jun 2026
The verdict
Coi is currently the #5726 unisex name in America, more common than 68% of girls - 120 born since 1999, peaking in the 2020s.
- #5726
- among girls today
- 120
- born since 1999
- 2020s
- peak decade
- 68%
- more common than other girls
Coi vs. every other girls name in current SSA rankings
#5726
of 17,726 girls in use
More common than 68% of names given to girls today.
2020s
Peak decade
88% of everyone ever named Coi was born in this single decade.
2023
Single peak year
23 babies were named Coi in 2023 - its busiest year on record.
How Coi compares
120 27th percentile among 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
Coi's all-time total is 69% below the median girls name, and Olivia still leads by a wide margin.
| Metric | Coi | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 120 | 382 | 567,345 |
| Peak-year births | 23 | 48 | 19,840 |
Coi's usage pattern, beyond the headline number
Divide Coi's SSA record in two at 2021 and the more recent half accounts for 82% of all births, the earlier half the remaining 18%, consistent with a name still gaining ground rather than fading. Its calmest year was 1999, with only 5 births recorded -- set against the 2023 peak of 23, that's the full swing in one name's fortunes.
Coi at a glance
Outside the top 1,000Peak year
2023
Current rank
#5,726
Active since
1999
Coi popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1999–2025
- Peak year (2023)
- 23
- Annual births at peak, across 27 years of records
Coi popularity over time - boys
72 total births recorded since 1996 (Coi as boys' name)
Coi by decade
Total births in each ten-year window, peak vs trough at a glance
2020s was Coi's strongest decade.
105 babies received the name during that ten-year window, about 88% of all-time use.
Coi births by decade
Total births in each ten-year window
- 1990s 5
1990s
5 births
- 2000s 5
2000s
5 births
- 2010s 5
2010s
5 births
- 2020s
2020s
105 births
What this shows Peak: 2020s at 105 births (88% of all-time use).
Frequently Asked Questions
How popular is the name Coi? ▼
120 babies have been named Coi since 1999. It currently ranks #5726 among girls. The peak year was 2023 with 23 births.
When was Coi most popular? ▼
Coi was most popular in the 2020s decade with 105 total births. The single peak year was 2023.
Is Coi a unisex name? ▼
Yes, Coi is used for both boys and girls. As a girl's name it has 120 births, and as a boy's name it has 72 births.
How long has the name Coi been used? ▼
Coi has been recorded in Social Security data since 1999, spanning 27 years of data through 2025.
What names are similar to Coi? ▼
Names with a similar sound or spelling include Coila. These share a common prefix and are also used for girls.
Keep exploring Coi
Nearby Names Like Coi
Names with a similar sound, spelling, or feel to Coi
Compare Coi side by side: Coi vs Coila
Related Names
Names with a similar popularity rank to Coi
Data Sources
Data as of June 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, 1999–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Coi: #5726 Unisex Name - 120 Births, Peak 2023." NameAlmanac. Accessed via https://namealmanac.com/name/coi. 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 Coi 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 June 2026.