How old is someone named Joni?
The average Joni is 55 years old.
Half of all living Jonis are between 46 and 68.
When was Joni popular?
Joni was a boom name: it shot up, peaked in 1956, and dropped away. That's why most Jonis are close to the same age.
Popular names of 1956 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1930s | 93 | under 100 |
| 1940s | 440 | 250 |
| 1950s | 9,262 | 7,400 |
| 1960s | 8,333 | 7,200 |
| 1970s | 4,282 | 4,000 |
| 1980s | 4,231 | 4,100 |
| 1990s | 1,033 | 1,000 |
| 2000s | 596 | 590 |
| 2010s | 616 | 610 |
| 2020s | 616 | 610 |
How many Jonis are still alive?
About 26,000 Jonis are alive in the US today. That's 88% of the roughly 30,000 babies named Joni since 1930.
Most Jonis ever born are still alive.
What generation is the name Joni?
About half of living Jonis are Baby Boomers, born between 1946 and 1964.
Is Joni an old name?
Yes. Joni is older than 83 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Joni will be 60 in 2056, so the name is aging slowly.
Is Joni a boy or girl name?
Mostly girls: 97.5% of living Jonis are women.
Names the same age as Joni
NAME TWIN
Joni's name twin is Randy. Of all 3,713 names on AgeByName, Randy's age curve is the closest match to Joni's: 84% alike.
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Questions about the name Joni
How old is the average Joni?
The average Joni in the US is 55 years old. The median is 61, so half are older and half younger.
How many people are named Joni?
About 26,000 Jonis are alive in the US today, out of roughly 30,000 babies given the name since 1930.
When was the name Joni most popular?
In 1956, when about 1,600 baby girls were named Joni.
Is Joni a Boomer name?
Partly. Baby Boomers are the largest group, about 49% of living Jonis, 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