How Many People Are Named Jacolby?
An estimated 1,528 people in the United States have the first name Jacolby. It is predominantly male (99.0%). The average bearer is 24 years old, and Jacolby peaked in popularity in 1992 with 86 births that year.
Below you will find a full statistical profile of Jacolby 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 Jacolby paired with any surname.
Estimated Living Americans
1,528
About 1 in 224,316 people in the U.S.
Rarity
Rare
Predicted Gender
Male
99.0% confidence
Average Age
24
years old
Peak Year
1992
86 births
Total Registered
1,557
since 1880
Gender Distribution for Jacolby
Jacolby is almost exclusively a male name. Out of 1,557 total births registered, 99.0% were male.
Jacolby as a male name
Ranked #8,570 in 2024
9 male births in 2024
Peak: 1992 (81 births)
Jacolby as a female name
Ranked #14,094 in 1992
5 female births in 1992
Peak: 1986 (5 births)
Jacolby: Popularity Over Time
SSA records for Jacolby span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 1990s, when 522 babies were registered. Jacolby has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Jacolby by Decade
How has Jacolby 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.
Jacolby by State
Birth registrations for Jacolby span all 8 states and territories in the SSA database. The highest counts are in Texas, Louisiana, Alabama. The lowest are in North Carolina, Tennessee, Florida. On average, about 84 Jacolbys were registered per state.
Jacolby + Last Name Combinations
How many people share a full name with Jacolby as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Jacolby
Other first names starting with J with a similar number of bearers.
Jacolby: Questions and Answers
How many people in the U.S. are named Jacolby?
We estimate approximately 1,528 people named Jacolby 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 224,316 Americans share this first name.
Is Jacolby a common name?
Jacolby is classified as "Rare" and is more popular than 92.5% of all first names in the SSA database. A total of 1,557 births have been registered with this name since 1880.
When was Jacolby most popular?
Jacolby reached peak popularity in 1992, when 86 babies were given this name. The average age of a living person named Jacolby is approximately 24 years old, reflecting when the name was most commonly given.
Is Jacolby a male name?
Jacolby is predominantly male. 99.0% of people with this name are male. See the gender breakdown above for full details.
How many Jacolby Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Jacolby Smith, Jacolby Johnson, Jacolby 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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