How old is someone named Jill?
The average Jill is 57 years old.
Half of all living Jills are between 49 and 65.
When was Jill popular?
Parents have been choosing Jill less often since its peak in 1966; 21 babies got the name in 2025.
Popular names of 1966 · The most popular names of the 1960s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 5 | 0 |
| 1910s | 53 | 0 |
| 1920s | 256 | under 100 |
| 1930s | 1,578 | 420 |
| 1940s | 11,890 | 7,200 |
| 1950s | 39,125 | 31,000 |
| 1960s | 69,310 | 61,000 |
| 1970s | 55,245 | 52,000 |
| 1980s | 24,478 | 24,000 |
| 1990s | 4,748 | 4,700 |
| 2000s | 1,335 | 1,300 |
| 2010s | 425 | 420 |
| 2020s | 124 | 120 |
How many Jills are still alive?
About 180,000 Jills are alive in the US today. That's 87% of the roughly 210,000 babies named Jill since 1906.
Most Jills ever born are still alive.
What generation is the name Jill?
About half of living Jills are Gen Xers, born between 1965 and 1980.
- Silent 2%
- Boomer 35%
- Gen X 50%
- Millennial 13%
- Gen Z 1%
Is Jill an old name?
Yes. Jill is older than 86 in 100 names on AgeByName.
Is Jill a boy or girl name?
Almost entirely girls: 99.8% of living Jills are women.
Names the same age as Jill
NAME TWIN
Jill's name twin is Beth. Of all 3,713 names on AgeByName, Beth's age curve is the closest match to Jill's: 89% alike.
Think you can guess a Linda's age?
Ten names, one slider each. Share your score.
Questions about the name Jill
How old is the average Jill?
The average Jill in the US is 57 years old. The median is 58, so half are older and half younger.
How many people are named Jill?
About 180,000 Jills are alive in the US today, out of roughly 210,000 babies given the name since 1906.
When was the name Jill most popular?
In 1966, when about 7,900 baby girls were named Jill.
Is Jill a Gen X name?
Partly. Gen X are the largest group, about 50% of living Jills, 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