How Many People Are Named Kierstyn?
An estimated 2,365 people in the United States have the first name Kierstyn. It is almost exclusively a female name. The average bearer is 22 years old, and Kierstyn peaked in popularity in 2007 with 135 births that year.
Below you will find a full statistical profile of Kierstyn as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Kierstyn paired with any surname.
Estimated Living Americans
2,365
About 1 in 144,928 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
22
years old
Peak Year
2007
135 births
Total Registered
2,409
since 1880
Gender Distribution for Kierstyn
Kierstyn is almost exclusively a female name. Out of 2,409 total births registered, 100.0% were female.
Kierstyn as a female name
Ranked #11,623 in 2024
8 female births in 2024
Peak: 2007 (135 births)
Kierstyn: Popularity Over Time
SSA records for Kierstyn span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2000s, when 1,120 babies were registered. Kierstyn has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kierstyn by Decade
How has Kierstyn tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Kierstyn by State
Birth registrations for Kierstyn span all 24 states and territories in the SSA database. The highest counts are in Texas, Ohio, Pennsylvania. The lowest are in South Carolina, New Jersey, Massachusetts. On average, about 39 Kierstyns were registered per state.
Kierstyn + Last Name Combinations
How many people share a full name with Kierstyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kierstyn
Other first names starting with K with a similar number of bearers.
Kierstyn: Questions and Answers
How many people in the U.S. are named Kierstyn?
We estimate approximately 2,365 people named Kierstyn are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 144,928 Americans share this first name.
Is Kierstyn a common name?
Kierstyn is classified as "Rare" and is more popular than 94.3% of all first names in the SSA database. A total of 2,409 births have been registered with this name since 1880.
When was Kierstyn most popular?
Kierstyn reached peak popularity in 2007, when 135 babies were given this name. The average age of a living person named Kierstyn is approximately 22 years old, reflecting when the name was most commonly given.
Is Kierstyn a female name?
Kierstyn is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kierstyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kierstyn Smith, Kierstyn Johnson, Kierstyn Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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