How old is someone named Kaci?
The average Kaci is 28 years old.
Half of all living Kacis are between 18 and 38.
When was Kaci popular?
Kaci is a steady name: popular for generations, with a peak in 1990 but no single era. You'll meet Kacis of every age.
Popular names of 1990 · The most popular names of the 1990s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1960s | 37 | under 100 |
| 1970s | 619 | 580 |
| 1980s | 2,319 | 2,200 |
| 1990s | 2,816 | 2,800 |
| 2000s | 2,173 | 2,100 |
| 2010s | 1,496 | 1,500 |
| 2020s | 723 | 720 |
How many Kacis are still alive?
About 10,000 Kacis are alive in the US today. That's 98% of the roughly 10,000 babies named Kaci since 1965.
Nearly every Kaci ever born is still alive, because almost all of them are young.
What generation is the name Kaci?
About two in five living Kacis are Millennials, born between 1981 and 1996.
- Gen X 8%
- Millennial 41%
- Gen Z 34%
- Gen Alpha 18%
Is Kaci an old name?
Not really. Kaci is younger than 53 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Kaci will be 46 in 2056, so the name is getting older.
Is Kaci a boy or girl name?
Mostly girls: 98.3% of living Kacis are women.
Names the same age as Kaci
NAME TWIN
Kaci's name twin is Demarcus. Of all 3,713 names on AgeByName, Demarcus's age curve is the closest match to Kaci's: 92% alike.
Other spellings: Kasey (32) · Kacey (26) · Kacie (30) · Kacy (35)
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Questions about the name Kaci
How old is the average Kaci?
The average Kaci in the US is 28 years old. The median is 29, so half are older and half younger.
How many people are named Kaci?
About 10,000 Kacis are alive in the US today, out of roughly 10,000 babies given the name since 1965.
When was the name Kaci most popular?
In 1990, when about 360 baby girls were named Kaci.
Is Kaci a Millennial name?
Partly. Millennials are the largest group, about 41% of living Kacis, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this