Total births
14,211
Girls' name · since 1981
Kailyn
Kailyn has 14,211 recorded births since 1981 in federal Social Security data, most heavily in 2011 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #1587
- among girls today
- 14,211
- born since 1981
- 2000s
- peak decade
- 91%
- more common than other girls
Yes -- Kailyn is the #1587 most popular girls' name in the U.S. today, with 14,211 recorded since 1981.
According to the U.S. Social Security Administration, Kailyn has been recorded 14,211 times among girls since 1981, currently ranked #1587 nationally and more common than 91% of girls, with its heaviest use in the 2000s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1981 to 2025.
- #1587 among girls today
- 14,211 born since 1981
- 2000s peak decade
- 91% more common than other girls
Data updated Jul 2026
The verdict
Kailyn is currently the #1587 girls' name in America, more common than 91% of girls - 14,211 born since 1981, peaking in the 2000s.
- #1587
- among girls today
- 14,211
- born since 1981
- 2000s
- peak decade
- 91%
- more common than other girls
Kailyn vs. every other girls name in current SSA rankings
#1587
of 17,726 girls in use
More common than 91% of names given to girls today.
2000s
Peak decade
39% of everyone ever named Kailyn was born in this single decade.
2011
Single peak year
793 babies were named Kailyn in 2011 - its busiest year on record.
How Kailyn compares
14,211 Top 7% higher than 93% 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
Kailyn's all-time total is 37x the median girls name, and Olivia still leads by a wide margin.
| Metric | Kailyn | Median girls name (Emerly) | #1 girls name (Olivia) |
|---|---|---|---|
| All-time total births | 14,211 | 382 | 567,345 |
| Peak-year births | 793 | 48 | 19,840 |
Kailyn's usage pattern, beyond the headline number
Divide Kailyn's SSA record in two at 2003 and the more recent half accounts for 72% of all births, the earlier half the remaining 28%, consistent with a name still gaining ground rather than fading. Its calmest year was 1981, with only 6 births recorded -- set against the 2011 peak of 793, that's the full swing in one name's fortunes.
Kailyn at a glance
Outside the top 1,000Peak year
2011
Current rank
#1,587
Active since
1981
Kailyn popularity over time - girls
Annual U.S. births registered with the Social Security Administration · 1981–2025
- Peak year (2011)
- 793
- Annual births at peak, across 45 years of records
Kailyn popularity over time - boys
140 total births recorded since 1998 (Kailyn as boys' name)
Kailyn by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Kailyn's strongest decade.
5,584 babies received the name during that ten-year window, about 39% of all-time use.
Kailyn births by decade
Total births in each ten-year window
- 1980s 349
1980s
349 births
- 1990s
1990s
2,422 births
- 2000s
2000s
5,584 births
- 2010s
2010s
4,927 births
- 2020s 929
2020s
929 births
What this shows Peak: 2000s at 5,584 births (39% of all-time use).
How Kailyn compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Kailyn's total volume
Kailyn vs 15 similarly-sized girls names
Kailyn by state
Where Kailyn concentrates geographically, total births since 1981
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 1,327 | 9.3% |
| #2 | Texas | | 1,282 | 9.0% |
| #3 | Florida | | 826 | 5.8% |
| #4 | New York | | 772 | 5.4% |
| #5 | Georgia | | 632 | 4.4% |
| #6 | Ohio | | 564 | 4.0% |
| #7 | Illinois | | 529 | 3.7% |
| #8 | North Carolina | | 504 | 3.5% |
California share of Kailyn's total US births 9.3%
Even split
1,327 of 14,211 births nationwide. Compared to a flat distribution across 46 reporting states.
Kailyn appears in 46 states. Explore state details →
Frequently Asked Questions
How popular is the name Kailyn? ▼
Since 1981, Social Security records show 14,211 babies named Kailyn. Today it holds rank #1587 among girls. Its busiest year on record was 2011, with 793 births.
When was Kailyn most popular? ▼
Kailyn was most popular in the 2000s decade with 5,584 total births. The single peak year was 2011.
Where is Kailyn most popular? ▼
The top states for the name Kailyn are California (1,327 births), Texas (1,282 births), Florida (826 births).
How long has the name Kailyn been used? ▼
The SSA has tracked Kailyn since 1981 -- 45 years through the most recent 2025 data.
What names are similar to Kailyn? ▼
Names with a similar sound or spelling include Kaitlyn, Kaitlin, Kailey, Kaia, and 4 more. These share a common prefix and are also used for girls.
What to do with Kailyn's data
- Kailyn's decade-level peak was the 2000s (5,584 total births); usage has since declined to 929 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Kailyns (1,327 births) -- see the full state breakdown if geography matters to your decision. California names
- 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 Kailyn
Nearby Names Like Kailyn
Names with a similar sound, spelling, or feel to Kailyn
Kaitlyn Girl
#650 166,689 births
Kaitlin Girl
#4931 57,355 births
Kailey Girl
#1285 27,244 births
Kaia Girl
#180 20,909 births
Kaitlynn Girl
#3490 16,419 births
Compare Kailyn side by side: Kailyn vs Kaitlyn Kailyn vs Kaitlin Kailyn vs Kailey
Related Names
Names with a similar popularity rank to Kailyn
Story #1586
1,889 births · Peak 2024
Zayna #1588
2,099 births · Peak 2025
Mayra #1585
33,217 births · Peak 1987
Sanai #1589
4,236 births · Peak 2008
Marlie #1584
4,542 births · Peak 2009
Lilieth #1590
274 births · Peak 2024
Memphis #1583
2,550 births · Peak 2022
Georgie #1591
12,799 births · Peak 1925
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, 1981–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Kailyn: #1587 Girls' Name - 14,211 Births, Peak 2011." NameAlmanac. Accessed via https://namealmanac.com/name/kailyn. 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 Kailyn 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.