How Many People Are Named Kacy?
An estimated 5,742 people in the United States have the first name Kacy. It is used for both genders, with 83.6% female. The average bearer is 35 years old, and Kacy peaked in popularity in 1990 with 222 births that year.
Below you will find a full statistical profile of Kacy 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 Kacy paired with any surname.
Estimated Living Americans
5,742
About 1 in 59,693 people in the U.S.
Rarity
Rare
Predicted Gender
Female
83.6% confidence
Average Age
35
years old
Peak Year
1990
222 births
Total Registered
6,025
since 1880
Gender Distribution for Kacy
Kacy is predominantly female (83.6%), though 988 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Kacy as a male name
Ranked #7,990 in 2024
10 male births in 2024
Peak: 1992 (37 births)
Kacy as a female name
Ranked #6,017 in 2024
20 female births in 2024
Peak: 1990 (196 births)
Kacy: Popularity Over Time
SSA records for Kacy span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 1980s, when 1,801 babies were registered. Kacy has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Kacy by Decade
How has Kacy 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.
Kacy by State
Birth registrations for Kacy span all 31 states and territories in the SSA database. The highest counts are in Texas, California, Florida. The lowest are in New Mexico, Nebraska, Montana. On average, about 80 Kacys were registered per state.
Kacy + Last Name Combinations
How many people share a full name with Kacy as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kacy
Other first names starting with K with a similar number of bearers.
Kacy: Questions and Answers
How many people in the U.S. are named Kacy?
We estimate approximately 5,742 people named Kacy 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 59,693 Americans share this first name.
Is Kacy a common name?
Kacy is classified as "Rare" and is more popular than 96.8% of all first names in the SSA database. A total of 6,025 births have been registered with this name since 1880.
When was Kacy most popular?
Kacy reached peak popularity in 1990, when 222 babies were given this name. The average age of a living person named Kacy is approximately 35 years old, reflecting when the name was most commonly given.
Is Kacy a female name?
Kacy is predominantly female. 83.6% of people with this name are female. See the gender breakdown above for full details.
How many Kacy Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kacy Smith, Kacy Johnson, Kacy 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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