Casi
Casi was last recorded in 2022, when 5 babies were given it; 1,080 Americans have been recorded with it between 1962 and 2022 (Social Security Administration, published May 2026).
An estimated 1,040 Americans named Casi and born in the U.S. are alive in 2026 (97% of everyone recorded); the median is 39 years old and half are between 34 and 46.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Casi by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Casi?
Unranked in 2025
Its last girls’ rank on record is #15,771, in 2022; SSA lists a name only in years with 5 or more births.
56 babies in 1989, the peak
Casi peaked in 1989, when 56 girls were given it, #2,168 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2022 | 5 | #15,771 | 3.0 |
| 2014 | 6 | #14,947 | 3.4 |
| 2012 | 5 | #17,396 | 2.8 |
| 2009 | 5 | #17,824 | 2.7 |
| 2007 | 8 | #12,901 | 4.2 |
| 2006 | 9 | #11,619 | 4.7 |
| 2005 | 5 | #16,978 | 2.7 |
| 2004 | 9 | #10,850 | 4.9 |
| 2003 | 11 | #9,166 | 6.0 |
| 2002 | 11 | #8,957 | 6.1 |
Every recorded year (44)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2001 | 16 | #6,674 | 8.9 |
| 2000 | 11 | #8,653 | 6.1 |
| 1999 | 18 | #5,699 | 10.1 |
| 1998 | 18 | #5,613 | 10.2 |
| 1997 | 27 | #4,021 | 15.5 |
| 1996 | 24 | #4,325 | 13.7 |
| 1995 | 15 | #6,010 | 8.5 |
| 1994 | 20 | #4,870 | 11.2 |
| 1993 | 31 | #3,507 | 17.1 |
| 1992 | 40 | #2,924 | 21.7 |
| 1991 | 48 | #2,554 | 25.6 |
| 1990 | 51 | #2,403 | 26.9 |
| 1989 | 56 | #2,168 | 30.4 |
| 1988 | 45 | #2,417 | 25.3 |
| 1987 | 50 | #2,158 | 28.8 |
| 1986 | 53 | #2,030 | 30.9 |
| 1985 | 32 | #2,867 | 18.6 |
| 1984 | 34 | #2,685 | 20.2 |
| 1983 | 42 | #2,276 | 25.1 |
| 1982 | 44 | #2,255 | 26.0 |
| 1981 | 45 | #2,233 | 27.0 |
| 1980 | 43 | #2,287 | 25.9 |
| 1979 | 42 | #2,279 | 26.2 |
| 1978 | 30 | #2,749 | 19.6 |
| 1977 | 22 | #3,387 | 14.3 |
| 1976 | 24 | #3,013 | 16.4 |
| 1975 | 27 | #2,748 | 18.5 |
| 1974 | 17 | #3,712 | 11.6 |
| 1973 | 23 | #2,922 | 15.8 |
| 1972 | 18 | #3,417 | 11.8 |
| 1971 | 15 | #3,965 | 9.0 |
| 1970 | 13 | #4,263 | 7.4 |
| 1969 | 7 | #6,039 | 4.1 |
| 1962 | 5 | #6,693 | 2.5 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Casi a boy’s or a girl’s name?
Casi has been recorded only for girls: SSA lists no boys with the name in 44 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Casi: the SSA national file counts each sex separately.
How many people are named Casi, and how old are they?
1,040 alive in 2026, estimated
That is 97% of the 1,080 Americans ever recorded as Casi. The median Casi alive today is 39 years old; half are between 34 and 46.
The 2020 Census counted 1,065 people named Casi (1,030 women and girls, 35 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,048 born in the U.S. The Census count is 2% above that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Baby Boomers | 1946-1964 | 4 |
| Generation X | 1965-1980 | 265 |
| Millennials | 1981-1996 | 612 |
| Generation Z | 1997-2012 | 151 |
| Generation Alpha | 2013-2025 | 11 |
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).
How common is the spelling Casi?
Casi is a less common spelling of Cassie: SSA has recorded 1,080 Casi and 47,027 Cassie since 1880.
Of these 8 names spelled alike, given to 66,150 babies since 1880, Casi is the eighth most given (1.6% of them). In 2025 none of their 306 babies recorded by SSA was a Casi (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 Casi
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 Casi and names like it
- Compare Casi and CassieBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sCasi peaked in 1989.
- Texas’s most given namesThe state where SSA recorded the most babies named Casi since 1910.
- The top names of 1989The year the most babies were named Casi.
- The names of the MillennialsMost people named Casi alive today were born 1981-1996.
- Names starting with CMost given first.