AgeName

How old is someone named Kirstin?

The average Kirstin is 37 years old.

Half of all living Kirstins are between 29 and 46.

Estimated alive
8.5K
Median age
36
Peak year
1990
Mostly
Millennials

Kirstin was at its most popular in the early 1990s. Parents have been moving away from it for decades.

Popular names of 1990 · The most popular names of the 1990s →

Show the numbers by decade
Babies named Kirstin by decade, and how many are estimated alive today
Born inBabies bornAlive today
1940s11under 100
1950s51under 100
1960s748670
1970s1,4281,300
1980s1,8671,800
1990s3,1083,000
2000s1,3631,300
2010s185190
2020s17under 100

How many Kirstins are still alive?

About 8,500 Kirstins are alive in the US today. That's 96% of the roughly 8,800 babies named Kirstin since 1942.

Nearly every Kirstin ever born is still alive, because almost all of them are young.

What generation is the name Kirstin?

About half of living Kirstins are Millennials, born between 1981 and 1996.

See all Millennial names →

Is Kirstin an old name?

Somewhat. Kirstin is older than 63 in 100 names on AgeByName, but younger than plenty of classics.

Names that sound old →

Is Kirstin a boy or girl name?

Almost entirely girls: over 99.9% of living Kirstins are women.

Names the same age as Kirstin

NAME TWIN

Kirstin's name twin is Casandra. Of all 3,713 names on AgeByName, Casandra's age curve is the closest match to Kirstin's: 90% alike.

GUESS THE AGE

Think you can guess a Gary's age?

Ten names, one slider each. Share your score.

Play now →

Questions about the name Kirstin

How old is the average Kirstin?

The average Kirstin in the US is 37 years old. The median is 36, so half are older and half younger.

How many people are named Kirstin?

About 8,500 Kirstins are alive in the US today, out of roughly 8,800 babies given the name since 1942.

When was the name Kirstin most popular?

In 1990, when about 410 baby girls were named Kirstin.

Is Kirstin a Millennial name?

Partly. Millennials are the largest group, about 47% of living Kirstins, 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