US rank #5887 Unisex name Peak 2023 101 births

Coi — #5887 US unisex name

101 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.

1990s52000s52010s52020s86
#5887
of 17,661 girls in use

More common than 67% of names given to girls today.

2020s
Peak decade

85% 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.

What the Data Says About Coi

The Social Security Administration has registered 101 babies named Coi between 1999 and 2024, spanning 26 consecutive years of U.S. birth records. As a girl's name, Coi currently holds the #5887 rank among girls for 2024. The name reached its historical peak in 2023, when 23 babies received it in a single year. Coi is classified as unisex in SSA records: the opposite-sex variant accounts for 65 additional births since 1996.

Decade-level aggregation shows that Coi performed strongest in the 2020s, accumulating 86 births during that ten-year window. Across the 4 decades of recorded activity, Coi shows a stable profile with only moderate drift from its peak decade.

No etymological entry is currently available for Coi in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 101 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Coi at a glance

Outside the top 1,000

Total births

101

Since 1999

26 years of records

Peak year

2023

23 births that year

Strongest decade: 2020s

Current rank

#5,887

Among girls

As of 2024

Active since

1999

Recorded for 26 years

Last year on file: 2024

Coi popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 2024–1999

Outside the top 1,000
Peak year (2023)
23
Annual births at peak — across 26 years of records
0510152025 20242023202220212020201620081999 5

Coi popularity over time — boys

65 total births recorded since 1996 (Coi as boys' name)

Unisex variant — 65 births
468101214 202420232022202120192013200920081996 5

Coi by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2020s
Peak decade
2020s
86 births that decade — 85% of Coi's all-time total
1990s52000s52010s52020s86

Frequently Asked Questions

How popular is the name Coi?
101 babies have been named Coi since 1999. It currently ranks #5887 among girls. The peak year was 2023 with 23 births.
When was Coi most popular?
Coi was most popular in the 2020s decade with 86 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 101 births, and as a boy's name it has 65 births.
How long has the name Coi been used?
Coi has been recorded in Social Security data since 1999, spanning 26 years of data through 2024.
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.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1999–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.