Masculine dossier · first seen 1968

Kolby

Stable Cross-generational persistence
Peak era
2001
Peak births
739
Current vitality
Fragile
Peak generation
Gen Z
1968Peak 20012025
peak 2001 2025 18801900192019401960198020002020

Quick answers about Kolby

How many people are named Kolby?

An estimated 11,469 living Americans are named Kolby.

How rare is Kolby?

Kolby is uncommon among babies today, with 165 boys receiving the name in 2025, down 77.7% from its 2001 peak.

How old is the typical Kolby?

The median age of a living American named Kolby is approximately 22 years, with most bearers falling between 15 and 28 years old.

Is Kolby still popular?

Yes. Kolby is holding steady, with 165 births in 2025 and a consistent recent baseline.

Peak year
2001
Decline from peak
77.7%
2025
165
All-time
11,650
Diaspora map

Kolby spread fast — broke out in Louisiana, Oklahoma, Tennessee, Texas, and Washington (1999) and ran high in 13 states within a decade.

Broke out: Louisiana, Oklahoma, Tennessee, Texas, and Washington, 1999 · over-represented in 13 states over 5 years

Alabama: broke out 2001 AL Alaska: no breakout AK Arizona: no breakout AZ Arkansas: no breakout AR California: no breakout CA Colorado: no breakout CO Connecticut: no breakout CT Delaware: no breakout DE District of Columbia: no breakout DC Florida: no breakout FL Georgia: no breakout GA Hawaii: no breakout HI Idaho: broke out 2001 ID Illinois: no breakout IL Indiana: no breakout IN Iowa: broke out 2001 IA Kansas: broke out 2001 KS Kentucky: no breakout KY Louisiana: broke out 1999 LA Maine: no breakout ME Maryland: no breakout MD Massachusetts: no breakout MA Michigan: no breakout MI Minnesota: no breakout MN Mississippi: broke out 2001 MS Missouri: broke out 2001 MO Montana: no breakout MT Nebraska: no breakout NE Nevada: no breakout NV New Hampshire: no breakout NH New Jersey: no breakout NJ New Mexico: no breakout NM New York: no breakout NY North Carolina: no breakout NC North Dakota: no breakout ND Ohio: no breakout OH Oklahoma: broke out 1999 OK Oregon: broke out 2004 OR Pennsylvania: no breakout PA Rhode Island: no breakout RI South Carolina: no breakout SC South Dakota: no breakout SD Tennessee: broke out 1999 TN Texas: broke out 1999 TX Utah: broke out 2001 UT Vermont: no breakout VT Virginia: no breakout VA Washington: broke out 1999 WA West Virginia: no breakout WV Wisconsin: no breakout WI Wyoming: no breakout WY