AgeName

How old is someone named Kiersten?

The average Kiersten is 27 years old.

Half of all living Kierstens are between 20 and 33.

Estimated alive
14.5K
Median age
26
Peak year
2005
Mostly
Gen Z

Kiersten had one big moment, peaking in 2005. 58% of the babies ever named Kiersten arrived in a single 15-year stretch.

Popular names of 2005 · The most popular names of the 2000s →

Show the numbers by decade
Babies named Kiersten by decade, and how many are estimated alive today
Born inBabies bornAlive today
1960s254230
1970s721680
1980s1,2461,200
1990s4,9334,800
2000s5,6525,600
2010s1,7431,700
2020s265270

How many Kierstens are still alive?

About 15,000 Kierstens are alive in the US today. That's 98% of the roughly 15,000 babies named Kiersten since 1963.

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

What generation is the name Kiersten?

More than half of living Kierstens are in Gen Z, born between 1997 and 2012.

See all Gen Z names →

Is Kiersten an old name?

Not really. Kiersten is younger than 54 in 100 names on AgeByName.

Names that sound young →

Is Kiersten a boy or girl name?

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

Names the same age as Kiersten

NAME TWIN

Kiersten's name twin is Deven. Of all 3,713 names on AgeByName, Deven's age curve is the closest match to Kiersten's: 93% alike.

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Questions about the name Kiersten

How old is the average Kiersten?

The average Kiersten in the US is 27 years old. The median is 26, so half are older and half younger.

How many people are named Kiersten?

About 15,000 Kierstens are alive in the US today, out of roughly 15,000 babies given the name since 1963.

When was the name Kiersten most popular?

In 2005, when about 660 baby girls were named Kiersten.

Is Kiersten a Gen Z name?

Yes. About 55% of living Kierstens 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