How old is someone named Sandi?
The average Sandi is 57 years old.
Half of all living Sandis are between 48 and 66.
When was Sandi popular?
Sandi peaked in 1959 and has been given less and less ever since. Only 5 babies got the name in 2025.
Popular names of 1959 · The most popular names of the 1950s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1930s | 75 | under 100 |
| 1940s | 1,314 | 790 |
| 1950s | 1,495 | 1,200 |
| 1960s | 3,103 | 2,700 |
| 1970s | 2,184 | 2,000 |
| 1980s | 1,146 | 1,100 |
| 1990s | 435 | 430 |
| 2000s | 259 | 260 |
| 2010s | 76 | under 100 |
| 2020s | 35 | under 100 |
How many Sandis are still alive?
About 8,700 Sandis are alive in the US today. That's 86% of the roughly 10,000 babies named Sandi since 1934.
Most Sandis ever born are still alive.
What generation is the name Sandi?
About two in five living Sandis are Gen Xers, born between 1965 and 1980.
Is Sandi an old name?
Yes. Sandi is older than 85 in 100 names on AgeByName.
Is Sandi a boy or girl name?
Almost entirely girls: 99.8% of living Sandis are women.
Names the same age as Sandi
NAME TWIN
Sandi's name twin is Julie. Of all 3,713 names on AgeByName, Julie's age curve is the closest match to Sandi's: 91% alike.
Other spellings: Sandy (56)
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Questions about the name Sandi
How old is the average Sandi?
The average Sandi in the US is 57 years old. The median is 58, so half are older and half younger.
How many people are named Sandi?
About 8,700 Sandis are alive in the US today, out of roughly 10,000 babies given the name since 1934.
When was the name Sandi most popular?
In 1959, when about 370 baby girls were named Sandi.
Is Sandi a Gen X name?
Partly. Gen X are the largest group, about 40% of living Sandis, 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