How Many People Are Named Harlo?
An estimated 578 people in the United States have the first name Harlo. It is used for both genders, with 59.3% female. The average bearer is 11 years old, and Harlo peaked in popularity in 2023 with 78 births that year.
Below you will find a full statistical profile of Harlo 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 Harlo paired with any surname.
Estimated Living Americans
578
About 1 in 593,001 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
59.3% confidence
Average Age
11
years old
Peak Year
2023
78 births
Total Registered
681
since 1880
Gender Distribution for Harlo
Harlo is a genuinely unisex name, used for both males (40.7%) and females (59.3%). Out of 681 total births registered, 277 were male and 404 were female.
Harlo as a male name
Ranked #3,342 in 2024
35 male births in 2024
Peak: 2024 (35 births)
Harlo as a female name
Ranked #5,053 in 2024
26 female births in 2024
Peak: 2023 (47 births)
Harlo: Popularity Over Time
SSA records for Harlo span from the 1910s to the 2020s, covering 8 decades of naming data. The most popular decade for this name was the 2020s, when 280 babies were registered. Harlo remains highly popular today, with recent registration numbers near its historical peak.
Harlo by Decade
How has Harlo 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.
Harlo by State
Birth registrations for Harlo span all 3 states and territories in the SSA database. The highest counts are in Texas, Pennsylvania, California. The lowest are in California, Pennsylvania, Texas. On average, about 7 Harlos were registered per state.
Harlo + Last Name Combinations
How many people share a full name with Harlo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Harlo
Other first names starting with H with a similar number of bearers.
Harlo: Questions and Answers
How many people in the U.S. are named Harlo?
We estimate approximately 578 people named Harlo 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 593,001 Americans share this first name.
Is Harlo a common name?
Harlo is classified as "Very Rare" and is more popular than 85.9% of all first names in the SSA database. A total of 681 births have been registered with this name since 1880.
When was Harlo most popular?
Harlo reached peak popularity in 2023, when 78 babies were given this name. The average age of a living person named Harlo is approximately 11 years old, reflecting when the name was most commonly given.
Is Harlo a female name?
Harlo is predominantly female. 59.3% of people with this name are female. See the gender breakdown above for full details.
How many Harlo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Harlo Smith, Harlo Johnson, Harlo 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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