How Many People Are Named Kirsty?
An estimated 897 people in the United States have the first name Kirsty. It is almost exclusively a female name. The average bearer is 37 years old, and Kirsty peaked in popularity in 1991 with 99 births that year.
Below you will find a full statistical profile of Kirsty 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 Kirsty paired with any surname.
Estimated Living Americans
897
About 1 in 382,112 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
37
years old
Peak Year
1991
99 births
Total Registered
945
since 1880
Gender Distribution for Kirsty
Kirsty is almost exclusively a female name. Out of 945 total births registered, 100.0% were female.
Kirsty as a female name
Ranked #18,031 in 2013
5 female births in 2013
Peak: 1991 (99 births)
Kirsty: Popularity Over Time
SSA records for Kirsty span from the 1960s to the 2010s, covering 6 decades of naming data. The most popular decade for this name was the 1990s, when 508 babies were registered. Kirsty has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Kirsty by Decade
How has Kirsty 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.
Kirsty by State
Birth registrations for Kirsty span all 9 states and territories in the SSA database. The highest counts are in California, Texas, Pennsylvania. The lowest are in Tennessee, Michigan, Florida. On average, about 18 Kirstys were registered per state.
Kirsty + Last Name Combinations
How many people share a full name with Kirsty as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kirsty
Other first names starting with K with a similar number of bearers.
Kirsty: Questions and Answers
How many people in the U.S. are named Kirsty?
We estimate approximately 897 people named Kirsty 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 382,112 Americans share this first name.
Is Kirsty a common name?
Kirsty is classified as "Very Rare" and is more popular than 89.4% of all first names in the SSA database. A total of 945 births have been registered with this name since 1880.
When was Kirsty most popular?
Kirsty reached peak popularity in 1991, when 99 babies were given this name. The average age of a living person named Kirsty is approximately 37 years old, reflecting when the name was most commonly given.
Is Kirsty a female name?
Kirsty is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Kirsty Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kirsty Smith, Kirsty Johnson, Kirsty 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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