Mostly girls · peaked in 1987

Kasey name popularity since 1925

45,949 babies born in the US from 1925 to 2025 were named Kasey (72.5% girls, 27.5% boys). Half of them were born in 1992 or earlier, so the typical Kasey is about 34 years old in 2026. Kasey peaked in 1987 as the #203 name for girls, and it was outside the top 1,000 in 2025.

Key facts

US babies since 1925
45,949
Named Kasey, 1925–2025
Peak year
1987
#203 for girls that year
Typical age
About 34
Median birth year 1992
In 2025
Not top 1,000
#1,876 for girls in 2025
Girls / boys
72.5% girls
33,326 girls · 12,623 boys
Most popular in
Utah
1.74× its national share

Peak year is the year Kasey made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.

Kasey births per year, 1925–2025

Babies named Kasey per year, 1925–2025

The biggest year by count was 1992. Measured as a share of all babies, Kasey peaked in 1987.

  • Fastest rise: Between 1970 and 1975, Kasey became 2.5× more common, from 1 in 12,000 baby girls to 1 in 4,720.
  • Steepest fall: Between 1998 and 2003, its share of baby girls fell by 49%, from 1 in 1,760 to 1 in 3,440.

Shaded on the chart. Both compare Kasey's share of all US girls five years apart, counting only years with at least 100 babies named Kasey.

Decade by decade

Babies named Kasey in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).

Decade GirlsBoys Rank
1925–29 00 –
1930s 00 Under 5
1940s 00 Under 5
1950s 6056 #5,505
1960s 490257 #1,258
1970s 3,2251,243 #554
1980s 9,7153,006 #286
1990s 11,4083,487 #245
2000s 5,2282,480 #601
2010s 2,3871,209 #1,093
2020–25 813885 #1,876

Ranks count every name given to at least 5 girls that year, so they can go past 1,000. "Under 5" means fewer than 5 girls got the name.

Generation fingerprint

50.3% of babies named Kasey from 1925 to 2025 were born in the Millennial years (1981–1996). The full split by generation:

Kasey by generation Baby Boomers born 1946–64 0.7% Gen X born 1965–80 12.9% Millennials born 1981–96 50.3% Gen Z born 1997–2012 27.5% Gen Alpha born 2013–25 8.6%

Where Kasey is most popular

The index compares Kasey's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Kasey.

StateIndexBabies
Utah1.74×598
Oklahoma1.61×847
Washington1.50×1,014
Louisiana1.48×1,074
Kentucky1.47×991

Other spellings

Spellings that sound like Kasey and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.

SpellingGirlsPeak year
Kasey (this page) 33,326 1987
Kassie 7,029 1987
Kasie 4,202 1987
Kasi 2,280 1988
Kassi 2,110 1986

Names with a similar story

Of the other 1999 names on this site, these six had the share of babies closest in shape to Kasey's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Kasey.

Names from the same era

Other common names that peaked within two years of Kasey (1987).

Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data