Kierstyn
Recorded 1976–2025 · United States
Kierstyn was most popular in 2007, when 135 American babies were given the name — ranking #2,886 that year. In 2025 it ranked #14,309, with 12 births. Across 1880–2025 the Social Security Administration has recorded 2,421 people named Kierstyn.
Kierstyn over time
How old is the name Kierstyn?
Kierstyn first appears in Social Security Administration records in 1976, which makes it about 49 years old as a recorded American name. It has been recorded in 41 of the 50 years since.
How many people are named Kierstyn?
The Social Security Administration has recorded 2,421 American births named Kierstyn between 1880 and 2025. That is recorded US births, not a world population — it counts people issued a Social Security number at birth in the United States. Of those, roughly 2,394 are estimated to be alive today.
How many babies were named Kierstyn in 2025?
12 American babies were named Kierstyn in 2025, ranking #14,309 that year.
Is Kierstyn getting more or less popular?
Kierstyn is falling. Across 2021–2025 it averaged 14 births a year, against 55 a year across 2011–2015 — a change of -74% over the decade.
Measured on recorded births. American births overall have fallen since 2007, so most established names lose births over any recent decade — a name can shed births and still hold its rank. Compare the rank above, which is measured against the other names of the same year.
Is Kierstyn a boy’s or a girl’s name?
Across the whole record Kierstyn is a girl’s name — 100.0% of the 2,421 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% boys.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
How old is someone named Kierstyn?
Roughly 2,394 Americans named Kierstyn are alive today — 99% of everyone ever recorded with the name. The median is 21 years old, and half are between 17 and 27. That is a narrow band: Kierstyn arrived and faded within about a decade rather than staying in steady use.
An estimate, not a count. Recorded births are carried forward through the Social Security Administration’s 2023 period life table, by age and sex. That table describes mortality in one recent year, so it credits the oldest cohorts with today’s survival rather than the harsher rates they actually lived through — the further back a name peaked, the more this will overstate how many remain. It counts people issued a Social Security number at birth, not immigrants who arrived later.
Where Kierstyn is most concentrated
How much more common the name is in each state than across the country as a whole.
Explore further
See Kierstyn on the interactive charts
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Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org