How old is someone named Billy?
The average Billy is 61 years old.
Half of all living Billys are between 49 and 74.
When was Billy popular?
Billy was at its most popular during the Depression. Parents have been moving away from it for decades, and 217 babies were named Billy in 2025.
Popular names of 1934 · The most popular names of the 1930s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 253 | 0 |
| 1910s | 3,263 | 0 |
| 1920s | 43,212 | 420 |
| 1930s | 89,443 | 11,000 |
| 1940s | 68,441 | 29,000 |
| 1950s | 59,760 | 40,000 |
| 1960s | 48,960 | 39,000 |
| 1970s | 33,927 | 30,000 |
| 1980s | 21,010 | 20,000 |
| 1990s | 11,070 | 11,000 |
| 2000s | 5,703 | 5,600 |
| 2010s | 3,134 | 3,100 |
| 2020s | 1,322 | 1,300 |
How many Billys are still alive?
About 190,000 Billys are alive in the US today. That's 49% of the roughly 390,000 babies named Billy since 1880.
Roughly half of all Billys ever born are still living.
What generation is the name Billy?
About two in five living Billys are Baby Boomers, born between 1946 and 1964.
Is Billy an old name?
Yes. Billy is older than 90 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Billy will be 67 in 2056, so the name is aging slowly.
Is Billy a boy or girl name?
Mostly boys: 98.6% of living Billys are men.
Names the same age as Billy
NAME TWIN
Billy's name twin is Bobby. Of all 3,713 names on AgeByName, Bobby's age curve is the closest match to Billy's: 97% alike.
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Questions about the name Billy
How old is the average Billy?
The average Billy in the US is 61 years old. The median is 63, so half are older and half younger.
How many people are named Billy?
About 190,000 Billys are alive in the US today, out of roughly 390,000 babies given the name since 1880.
When was the name Billy most popular?
In 1934, when about 9,700 baby boys were named Billy.
Is Billy a Boomer name?
Partly. Baby Boomers are the largest group, about 40% of living Billys, 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