How Many People Are Named Koby?
An estimated 5,952 people in the United States have the first name Koby. It is predominantly male (98.4%). The average bearer is 23 years old, and Koby peaked in popularity in 2000 with 419 births that year.
Below you will find a full statistical profile of Koby 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 Koby paired with any surname.
Key Insights
- While Koby is overwhelmingly male, 97 female births have been registered with this name since 1880.
Estimated Living Americans
5,952
About 1 in 57,586 people in the U.S.
Rarity
Rare
Predicted Gender
Male
98.4% confidence
Average Age
23
years old
Peak Year
2000
419 births
Total Registered
6,066
since 1880
Gender Distribution for Koby
Koby is predominantly male (98.4%), though 97 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Koby as a male name
Ranked #2,065 in 2024
73 male births in 2024
Peak: 2000 (411 births)
Koby as a female name
Ranked #16,504 in 2024
5 female births in 2024
Peak: 2000 (8 births)
Koby: Popularity Over Time
SSA records for Koby span from the 1950s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 2000s, when 2,597 babies were registered. Koby has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Koby by Decade
How has Koby 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.
Koby by State
Birth registrations for Koby span all 41 states and territories in the SSA database. The highest counts are in Texas, California, Louisiana. The lowest are in Wisconsin, South Dakota, North Dakota. On average, about 90 Kobys were registered per state.
Koby + Last Name Combinations
How many people share a full name with Koby as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Koby
Other first names starting with K with a similar number of bearers.
Koby: Questions and Answers
How many people in the U.S. are named Koby?
We estimate approximately 5,952 people named Koby 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 57,586 Americans share this first name.
Is Koby a common name?
Koby is classified as "Rare" and is more popular than 96.9% of all first names in the SSA database. A total of 6,066 births have been registered with this name since 1880.
When was Koby most popular?
Koby reached peak popularity in 2000, when 419 babies were given this name. The average age of a living person named Koby is approximately 23 years old, reflecting when the name was most commonly given.
Is Koby a male name?
Koby is predominantly male. 98.4% of people with this name are male. See the gender breakdown above for full details.
How many Koby Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Koby Smith, Koby Johnson, Koby 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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