Kailen
Kailen was given to 23 boys in 2025, #4,464 among boys’ names; 1,673 Americans have been recorded with it since 1983 (Social Security Administration, published May 2026).
An estimated 1,650 Americans named Kailen and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 18 years old and half are between 11 and 26.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Kailen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Kailen?
#4,464 among boys’ names, 2025
Kailen rose from #4,469 in 2015 to #4,464 in 2025 among boys’ names; its share of boys born rose from 11.5 to 13.5 per million.
71 babies in 2008, the peak
Kailen peaked in 2008, when 71 babies were given it (36 boys, #3,193 among boys’ names). The 23 births of 2025 are 32% of that peak.
Births by sex.
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2025 | under 5 | 23 | #4,464 | |
| 2024 | 5 | #16,396 | 38 | #3,191 |
| 2023 | 8 | #11,668 | 43 | #2,917 |
| 2022 | 7 | #12,849 | 27 | #4,039 |
| 2021 | under 5 | 40 | #3,047 | |
| 2020 | 10 | #9,876 | 36 | #3,166 |
| 2019 | 9 | #10,877 | 31 | #3,603 |
| 2018 | 12 | #8,875 | 27 | #3,935 |
| 2017 | 12 | #9,040 | 25 | #4,170 |
| 2016 | 14 | #8,188 | 36 | #3,188 |
Every recorded year (43)
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2015 | 13 | #8,680 | 22 | #4,469 |
| 2014 | 10 | #10,516 | 41 | #2,864 |
| 2013 | 21 | #6,118 | 28 | #3,701 |
| 2012 | 21 | #6,216 | 30 | #3,583 |
| 2011 | 24 | #5,634 | 25 | #4,046 |
| 2010 | 35 | #4,244 | 30 | #3,583 |
| 2009 | 30 | #4,864 | 33 | #3,368 |
| 2008 | 35 | #4,401 | 36 | #3,193 |
| 2007 | 41 | #3,879 | 28 | #3,742 |
| 2006 | 28 | #5,018 | 33 | #3,272 |
| 2005 | 24 | #5,346 | 33 | #3,122 |
| 2004 | 19 | #6,346 | 24 | #3,798 |
| 2003 | 34 | #3,977 | 27 | #3,401 |
| 2002 | 24 | #4,987 | 30 | #3,050 |
| 2001 | 25 | #4,755 | 24 | #3,561 |
| 2000 | 27 | #4,468 | 22 | #3,695 |
| 1999 | 36 | #3,465 | 28 | #2,979 |
| 1998 | 32 | #3,681 | 25 | #3,146 |
| 1997 | 19 | #5,302 | 18 | #3,808 |
| 1996 | 18 | #5,388 | 14 | #4,495 |
| 1995 | 23 | #4,412 | 14 | #4,397 |
| 1994 | 25 | #4,168 | 10 | #5,660 |
| 1993 | 15 | #6,084 | under 5 | |
| 1992 | 13 | #6,822 | 10 | #5,432 |
| 1991 | 12 | #7,149 | 9 | #5,730 |
| 1990 | 11 | #7,552 | 6 | #7,620 |
| 1989 | 8 | #9,133 | under 5 | |
| 1988 | 7 | #9,722 | under 5 | |
| 1987 | 9 | #7,648 | 9 | #4,745 |
| 1986 | 5 | #11,730 | under 5 | |
| 1985 | under 5 | 5 | #7,060 | |
| 1984 | 7 | #8,565 | under 5 | |
| 1983 | under 5 | 5 | #6,770 |
Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.
Is Kailen a boy’s or a girl’s name?
Of the 1,673 Americans recorded as Kailen, 44% are girls and 56% boys. In 2025 it went to 23 boys; SSA lists no girls with it that year (fewer than 5, or none).
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Kailen: the SSA national file counts each sex separately.
How many people are named Kailen, and how old are they?
1,650 alive in 2026, estimated
That is 99% of the 1,673 Americans ever recorded as Kailen. The median Kailen alive today is 18 years old; half are between 11 and 26.
The 2020 Census counted 1,337 people named Kailen (661 women and girls, 676 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,432 born in the U.S. The Census count is 7% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Millennials | 1981-1996 | 228 |
| Generation Z | 1997-2012 | 888 |
| Generation Alpha | 2013-2025 | 534 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 8 names spelled alike, given to 31,087 babies since 1880, Kailen is the eighth most given (5.4% of them). In 2025 it was given to 23 of their 950 babies (2.4%), the sixth most given that year.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Kailen
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Kailen and names like it
- Compare Kailen and CallenBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sKailen peaked in 2008.
- California’s most given namesThe state where SSA recorded the most babies named Kailen since 1910.
- The top names of 2008The year the most babies were named Kailen.
- The names of Generation ZMost people named Kailen alive today were born 1997-2012.
- Names starting with KMost given first.