Baby Names US
girls' name ★ peaked 2011

Kailynn

Meaning Spelling variant of Kaylin Gender Girl Rank 2025 #2,343 Trend ↓ Falling 30%

Spelling variant of Kaylin.

Rank 2025
#2,343
among girls · ↓296 vs 2024
Babies in 2025
78
named Kailynn · -18% vs 2024
How common
1 in 20,606
girls born in 2025
Peak year
2011
290 babies
All-time total
4,747
#2,670 all-time among girls
First recorded
1985
in Social Security records

Kailynn popularity over time

4,747 babies have been named Kailynn since 1985, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.050.10.150.218801900192019401960198020002020GirlsBoys
GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Girls Boys Total Per year Change Best rank
1880s – – – – – –
1890s – – – – – –
1900s – – – – – –
1910s – – – – – –
1920s – – – – – –
1930s – – – – – –
1940s – – – – – –
1950s – – – – – –
1960s – – – – – –
1970s – – – – – –
1980s 49 – 49 5 – #4,574
1990s 445 – 445 45 +808% #1,969
2000s 1,479 – 1,479 148 +232% #1,050
2010s 2,129 – 2,129 213 +44% #899
2020s (to 2025) 630 15 645 108 -50% #1,620

Where Kailynn is heading

A five-year projection from the recent trend in births per 1,000 girls (damped so it flattens over time), converted to babies at today's birth totals. The implied rank places that projection in the 2025 field. A projection, not a promise: real trends bend.

Year Projected babies Per 1,000 girls Implied rank
2026 73 0.05 outside top 500
2027 69 0.04 outside top 500
2028 66 0.04 outside top 500
2029 64 0.04 outside top 500
2030 62 0.04 outside top 500

Where Kailynn is most popular

Girls named Kailynn per 1,000 girls born in each state, 2021–2025. National average: 0.062 per 1,000. Strongest in South Carolina, Georgia, and Michigan.

Vs national average
well below below near national above well above no data

All 50 states and DC, sorted by rate. Counts are girls named Kailynn born 2021–2025; the per-1,000 rate makes states of different sizes comparable, and the last column shows each state against the national average.

State Girls 2021–2025 Per 1,000 vs national
South Carolina 13 0.145 +134%
Georgia 31 0.136 +121%
Michigan 20 0.110 +78%
Florida 42 0.098 +59%
North Carolina 21 0.092 +49%
Texas 63 0.078 +27%
Louisiana 6 0.069 +11%
Alabama 6 0.064 ≈ national
Pennsylvania 12 0.051 -18%
Tennessee 5 0.032 -49%
Ohio 7 0.030 -52%
Virginia 5 0.029 -52%
California 20 0.024 -61%
New York 5 0.013 -80%
Alaska – – –
Arkansas – – –
Arizona – – –
Colorado – – –
Connecticut – – –
District of Columbia – – –
Delaware – – –
Hawaii – – –
Iowa – – –
Idaho – – –
Illinois – – –
Indiana – – –
Kansas – – –
Kentucky – – –
Massachusetts – – –
Maryland – – –
Maine – – –
Minnesota – – –
Missouri – – –
Mississippi – – –
Montana – – –
North Dakota – – –
Nebraska – – –
New Hampshire – – –
New Jersey – – –
New Mexico – – –
Nevada – – –
Oklahoma – – –
Oregon – – –
Rhode Island – – –
South Dakota – – –
Utah – – –
Vermont – – –
Washington – – –
Wisconsin – – –
West Virginia – – –
Wyoming – – –

State counts come from the Social Security Administration's state files, which omit any state-year with fewer than five babies of a name, so small states can undercount slightly.

The story of Kailynn

Kailynn is rare for girls in the United States, ranked #2,343 in 2025 with 78 babies given the name. It is currently declining compared with a decade ago.

Since 1985, 4,747 American babies have been named Kailynn. Its peak came in 2011, when 290 newborns received the name, the signature sound of the 2010s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Kailynn stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Kailynn?

The median living Kailynn is about 14 years old; half are between 9 and 19. An estimated 4,700 people named Kailynn are alive in the United States today.

median 14 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Kailynn year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Girls Girls rank Boys Boys rank
2025 78 #2,343 – –
2024 95 #2,047 – –
2023 101 #1,953 8 #9,342
2022 105 #1,910 7 #10,320
2021 122 #1,703 – –
2020 129 #1,620 – –
2019 122 #1,712 – –
2018 154 #1,437 – –
2017 159 #1,432 – –
2016 184 #1,303 – –
2015 226 #1,128 – –
2014 258 #1,014 – –
2013 235 #1,060 – –
2012 271 #943 – –
2011 290 #899 – –
2010 230 #1,084 – –
2009 247 #1,050 – –
2008 226 #1,141 – –
2007 209 #1,204 – –
2006 150 #1,476 – –
2005 132 #1,550 – –
2004 125 #1,581 – –
2003 113 #1,694 – –
2002 98 #1,831 – –
2001 89 #1,947 – –
2000 90 #1,893 – –
1995 56 #2,355 – –
1990 19 #4,948 – –
1985 7 #8,728 – –
1980 – – – –
1975 – – – –
1970 – – – –
1965 – – – –
1960 – – – –
1955 – – – –
1950 – – – –
1945 – – – –
1940 – – – –
1935 – – – –
1930 – – – –
1925 – – – –
1920 – – – –
1915 – – – –
1910 – – – –
1905 – – – –
1900 – – – –
1895 – – – –
1890 – – – –
1885 – – – –
1880 – – – –

Frequently asked questions

Quick answers about Kailynn, drawn from the same Social Security data as the charts above.

How old is the average Kailynn?

The median living Kailynn is about 14 years old. Half of all living Kailynns are between 9 and 19 years old.

How many people named Kailynn are alive today?

An estimated 4,700 people named Kailynn are alive in the United States, based on 4,747 recorded births and Social Security life tables.

What does the name Kailynn mean?

Spelling variant of Kaylin.

How popular is the name Kailynn in 2025?

Kailynn ranked #2,343 among girls' names in the United States in 2025, with 78 babies given the name, according to Social Security Administration data.

How many people are named Kailynn?

4,747 babies have been named Kailynn in the United States since 1985, based on Social Security card applications.

When was the name Kailynn most popular?

Kailynn peaked in 2011, when 290 newborns received the name.

Is Kailynn a boy or girl name?

Kailynn is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Kailynn rising or falling?

Kailynn is declining, less popular now than a decade ago.

Will Kailynn become more popular?

Kailynn is trending downward. If the recent trend holds, we project roughly 62 girls named Kailynn in 2030, which would rank outside the top 500. Forecasts assume the current trend continues and become less certain further out.

Names like Kailynn

Names that sound and feel close to Kailynn: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Kailynn with similar names → More names starting with K →