Katilyn
Katilyn was last recorded in 2019, when 6 babies were given it; 1,738 Americans have been recorded with it between 1980 and 2019 (Social Security Administration, published May 2026).
An estimated 1,710 Americans named Katilyn and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 27 years old and half are between 22 and 32.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Katilyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Katilyn?
Unranked in 2025
Its last girls’ rank on record is #14,668, in 2019; SSA lists a name only in years with 5 or more births.
101 babies in 1998, the peak
Katilyn peaked in 1998, when 101 girls were given it, #1,612 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2019 | 6 | #14,668 | 3.6 |
| 2018 | 5 | #16,870 | 2.9 |
| 2017 | 6 | #15,010 | 3.5 |
| 2015 | 22 | #5,932 | 12.3 |
| 2014 | 13 | #8,714 | 7.3 |
| 2013 | 26 | #5,212 | 14.8 |
| 2012 | 19 | #6,728 | 10.8 |
| 2011 | 34 | #4,300 | 19.3 |
| 2010 | 34 | #4,354 | 19.1 |
| 2009 | 38 | #4,057 | 20.7 |
Every recorded year (38)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2008 | 45 | #3,615 | 23.8 |
| 2007 | 60 | #2,974 | 31.2 |
| 2006 | 58 | #2,952 | 30.5 |
| 2005 | 48 | #3,231 | 26.0 |
| 2004 | 68 | #2,493 | 37.0 |
| 2003 | 71 | #2,353 | 38.9 |
| 2002 | 64 | #2,479 | 35.6 |
| 2001 | 86 | #1,982 | 47.8 |
| 2000 | 88 | #1,925 | 48.5 |
| 1999 | 87 | #1,837 | 49.0 |
| 1998 | 101 | #1,612 | 57.2 |
| 1997 | 96 | #1,644 | 55.1 |
| 1996 | 67 | #2,071 | 38.2 |
| 1995 | 98 | #1,549 | 55.7 |
| 1994 | 94 | #1,611 | 52.6 |
| 1993 | 96 | #1,593 | 53.1 |
| 1992 | 69 | #1,991 | 37.4 |
| 1991 | 46 | #2,634 | 24.5 |
| 1990 | 45 | #2,619 | 23.7 |
| 1989 | 47 | #2,455 | 25.5 |
| 1988 | 34 | #3,001 | 19.1 |
| 1987 | 16 | #4,945 | 9.2 |
| 1986 | 14 | #5,304 | 8.2 |
| 1985 | 11 | #6,231 | 6.4 |
| 1983 | 7 | #8,457 | 4.2 |
| 1982 | 6 | #9,764 | 3.5 |
| 1981 | 7 | #8,516 | 4.2 |
| 1980 | 6 | #9,633 | 3.6 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Katilyn a boy’s or a girl’s name?
Katilyn has been recorded only for girls: SSA lists no boys with the name in 38 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Katilyn: the SSA national file counts each sex separately.
How many people are named Katilyn, and how old are they?
1,710 alive in 2026, estimated
That is 98% of the 1,738 Americans ever recorded as Katilyn. The median Katilyn alive today is 27 years old; half are between 22 and 32.
The 2020 Census counted 1,584 people named Katilyn (1,584 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,717 born in the U.S. The Census count is 8% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation X | 1965-1980 | 6 |
| Millennials | 1981-1996 | 642 |
| Generation Z | 1997-2012 | 985 |
| Generation Alpha | 2013-2025 | 77 |
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 370,347 babies since 1880, Katilyn is the eighth most given (<1% of them). In 2025 none of their 640 babies recorded by SSA was a Katilyn (SSA lists a name only with 5 or more babies of one sex).
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 Katilyn
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 Katilyn and names like it
- Compare Katilyn and KaitlynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1990sKatilyn peaked in 1998.
- Ohio’s most given namesThe state where SSA recorded the most babies named Katilyn since 1910.
- The top names of 1998The year the most babies were named Katilyn.
- The names of Generation ZMost people named Katilyn alive today were born 1997-2012.
- Names starting with KMost given first.