How old is someone named Heidi?
The average Heidi is 45 years old.
Half of all living Heidis are between 36 and 57.
When was Heidi popular?
Heidi peaked in 1972 and has been given less and less ever since. Only 894 babies got the name in 2025.
Popular names of 1972 · The most popular names of the 1970s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1920s | 8 | 0 |
| 1930s | 183 | under 100 |
| 1940s | 1,270 | 780 |
| 1950s | 10,218 | 8,200 |
| 1960s | 33,828 | 30,000 |
| 1970s | 42,385 | 40,000 |
| 1980s | 26,500 | 26,000 |
| 1990s | 10,803 | 11,000 |
| 2000s | 10,102 | 10,000 |
| 2010s | 9,259 | 9,200 |
| 2020s | 5,131 | 5,100 |
How many Heidis are still alive?
About 140,000 Heidis are alive in the US today. That's 93% of the roughly 150,000 babies named Heidi since 1929.
Nearly every Heidi ever born is still alive, because almost all of them are young.
What generation is the name Heidi?
About two in five living Heidis are Gen Xers, born between 1965 and 1980.
- Boomer 15%
- Gen X 44%
- Millennial 21%
- Gen Z 11%
- Gen Alpha 8%
Is Heidi an old name?
Somewhat. Heidi is older than 73 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Heidi will be 57 in 2056, so the name is aging slowly.
Is Heidi a boy or girl name?
Almost entirely girls: 99.8% of living Heidis are women.
Names the same age as Heidi
NAME TWIN
Heidi's name twin is Melonie. Of all 3,713 names on AgeByName, Melonie's age curve is the closest match to Heidi's: 91% alike.
Other spellings: Heidy (21)
Think you can guess a Ashley's age?
Ten names, one slider each. Share your score.
Questions about the name Heidi
How old is the average Heidi?
The average Heidi in the US is 45 years old. The median is 49, so half are older and half younger.
How many people are named Heidi?
About 140,000 Heidis are alive in the US today, out of roughly 150,000 babies given the name since 1929.
When was the name Heidi most popular?
In 1972, when about 4,700 baby girls were named Heidi.
Is Heidi a Gen X name?
Partly. Gen X are the largest group, about 44% of living Heidis, 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