How old is someone named Jaci?
The average Jaci is 26 years old.
Half of all living Jacis are between 15 and 33.
When was Jaci popular?
Jaci has never really gone out of style. Parents have chosen it every year for more than a century; its busiest year was 2005.
Popular names of 2005 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1930s | 5 | 0 |
| 1940s | 21 | under 100 |
| 1950s | 176 | 140 |
| 1960s | 242 | 210 |
| 1970s | 287 | 270 |
| 1980s | 396 | 380 |
| 1990s | 921 | 910 |
| 2000s | 1,703 | 1,700 |
| 2010s | 1,033 | 1,000 |
| 2020s | 370 | 370 |
How many Jacis are still alive?
About 5,000 Jacis are alive in the US today. That's 97% of the roughly 5,200 babies named Jaci since 1934.
Nearly every Jaci ever born is still alive, because almost all of them are young.
What generation is the name Jaci?
About half of living Jacis are in Gen Z, born between 1997 and 2012.
- Boomer 5%
- Gen X 8%
- Millennial 18%
- Gen Z 49%
- Gen Alpha 20%
Is Jaci an old name?
Not really. Jaci is younger than 56 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Jaci will be 43 in 2056, so the name is getting older.
Is Jaci a boy or girl name?
Almost entirely girls: over 99.9% of living Jacis are women.
Names the same age as Jaci
NAME TWIN
Jaci's name twin is Angel. Of all 3,713 names on AgeByName, Angel's age curve is the closest match to Jaci's: 92% alike.
Other spellings: Jacey (22)
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Questions about the name Jaci
How old is the average Jaci?
The average Jaci in the US is 26 years old. The median is 23, so half are older and half younger.
How many people are named Jaci?
About 5,000 Jacis are alive in the US today, out of roughly 5,200 babies given the name since 1934.
When was the name Jaci most popular?
In 2005, when about 220 baby girls were named Jaci.
Is Jaci a Gen Z name?
Partly. Gen Z are the largest group, about 49% of living Jacis, 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