Recorded 1965–2025 · United States
Kaci was most popular in 1990, when 362 American babies were given the name — ranking #1,135 that year. In 2025 it ranked #3,549, with 99 births. Across 1880–2025 the Social Security Administration has recorded 10,183 people named Kaci.
Kaci first appears in Social Security Administration records in 1965, which makes it about 60 years old as a recorded American name. It has been recorded in 61 of the 61 years since.
The Social Security Administration has recorded 10,183 American births named Kaci between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 10,001 are estimated to be alive today.
99 American babies were named Kaci in 2025, ranking #3,549 that year.
Kaci is holding steady. Across 2021–2025 it averaged 117 births a year, against 141 a year across 2011–2015 — a change of -17% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Across the whole record Kaci is a girl’s name — 98.3% of the 10,183 Americans given it were girls and 1.7% were boys. In births since 2016 it is 93% girls and 7% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
Roughly 10,001 Americans named Kaci are alive today — 98% of everyone ever recorded with the name. The median is 29 years old, and half are between 18 and 38.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
How much more common the name is in each state than across the country as a whole.
See Kaci on the interactive charts
About · Privacy · Contact
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org