US rank #5075 Girls' name Peak 2009 1,166 births

Cailynn — #5075 US girls' name

1,166 babies named Cailynn in U.S. Social Security records since 1990, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1990s1232000s3862010s5292020s128
#5075
of 17,661 girls in use

More common than 71% of names given to girls today.

2010s
Peak decade

45% of everyone ever named Cailynn was born in this single decade.

2009
Single peak year

68 babies were named Cailynn in 2009 — its busiest year on record.

What the Data Says About Cailynn

The Social Security Administration has registered 1,166 babies named Cailynn between 1990 and 2024, spanning 35 consecutive years of U.S. birth records. As a girl's name, Cailynn currently holds the #5075 rank among girls for 2024. The name reached its historical peak in 2009, when 68 babies received it in a single year.

Decade-level aggregation shows that Cailynn performed strongest in the 2010s, accumulating 529 births during that ten-year window. Across the 4 decades of recorded activity, Cailynn shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Texas, which accounts for 66 births — the largest state-level total in the dataset — followed by Florida and California. In total, SSA state-level files list Cailynn in 9 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Cailynn 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 1,166 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.

Cailynn at a glance

Outside the top 1,000

Total births

1,166

Since 1990

35 years of records

Peak year

2009

68 births that year

Strongest decade: 2010s

Current rank

#5,075

Among girls

As of 2024

Active since

1990

Recorded for 35 years

Last year on file: 2024

Cailynn popularity over time

Annual U.S. births registered with the Social Security Administration · 2024–1990

Outside the top 1,000
Peak year (2009)
68
Annual births at peak — across 35 years of records
020406080 20242019201420092004199919941990 5

Cailynn by decade

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

Peak: 2010s
Peak decade
2010s
529 births that decade — 45% of Cailynn's all-time total
1990s1232000s3862010s5292020s128

Cailynn by state

Where Cailynn concentrates geographically — total births since 1990

Geographically diffuse
Top 8 states by recorded births for the name Cailynn
Rank State Visual share Births Share of total
#1 Texas
66 5.7%
#2 Florida
40 3.4%
#3 California
24 2.1%
#4 Ohio
20 1.7%
#5 North Carolina
11 0.9%
#6 Arizona
5 0.4%
#7 Georgia
5 0.4%
#8 Louisiana
5 0.4%
Texas share of Cailynn's total US births 5.7%
Even split

66 of 1,166 births nationwide. Compared to a flat distribution across 9 reporting states.

Cailynn appears in 9 states. Explore state details →

Frequently Asked Questions

How popular is the name Cailynn?
1,166 babies have been named Cailynn since 1990. It currently ranks #5075 among girls. The peak year was 2009 with 68 births.
When was Cailynn most popular?
Cailynn was most popular in the 2010s decade with 529 total births. The single peak year was 2009.
Where is Cailynn most popular?
The top states for the name Cailynn are Texas (66 births), Florida (40 births), California (24 births).
How long has the name Cailynn been used?
Cailynn has been recorded in Social Security data since 1990, spanning 35 years of data through 2024.
What names are similar to Cailynn?
Names with a similar sound or spelling include Caitlin, Caitlyn, Cailyn, Caitlynn, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Cailynn

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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, 1990–2024 (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.