How old is someone named Kolby?
The average Kolby is 22 years old.
Half of all living Kolbys are between 14 and 28.
When was Kolby popular?
Kolby rose fast and peaked in 2001, then faded almost as fast. 54% of all Kolbys were born within 15 years of each other.
Popular names of 2001 · The most popular names of the 2000s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1960s | 5 | 0 |
| 1970s | 167 | 150 |
| 1980s | 843 | 800 |
| 1990s | 2,870 | 2,800 |
| 2000s | 5,054 | 5,000 |
| 2010s | 2,893 | 2,900 |
| 2020s | 1,169 | 1,200 |
How many Kolbys are still alive?
About 13,000 Kolbys are alive in the US today. That's 98% of the roughly 13,000 babies named Kolby since 1968.
Nearly every Kolby ever born is still alive, because almost all of them are young.
What generation is the name Kolby?
More than half of living Kolbys are in Gen Z, born between 1997 and 2012.
- Gen X 2%
- Millennial 19%
- Gen Z 56%
- Gen Alpha 24%
Is Kolby an old name?
Not really. Kolby is younger than 67 in 100 names on AgeByName.
Looking ahead: if babies keep getting the name at today's pace, the typical Kolby will be 39 in 2056, so the name is getting older.
Is Kolby a boy or girl name?
Mostly a boy's name: 90% of living Kolbys are men, and 11% are women.
The women average 21 and the men 22.
Names the same age as Kolby
NAME TWIN
Kolby's name twin is Skyler. Of all 3,713 names on AgeByName, Skyler's age curve is the closest match to Kolby's: 91% alike.
Other spellings: Colby (27)
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Questions about the name Kolby
How old is the average Kolby?
The average Kolby in the US is 22 years old. The median is 22, so half are older and half younger.
How many people are named Kolby?
About 13,000 Kolbys are alive in the US today, out of roughly 13,000 babies given the name since 1968.
When was the name Kolby most popular?
In 2001, when about 780 baby boys were named Kolby.
Is Kolby a Gen Z name?
Yes. About 56% of living Kolbys are in Gen Z, born between 1997 and 2012.
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