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, state-by-state birth registrations, and, when available, a 2020 Census snapshot showing who had the name at that point in time. 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 in the 2020 Census
The 2020 Census recorded 403 people with the first name Harlo, which placed it at #24,063 in the published first-name tables. This is a snapshot of people who already had the name in 2020. The estimated living count elsewhere on this page is different: it is a current estimate built from SSA birth records and age-based survival rates, so the two figures are not expected to match exactly.
Read this section as a snapshot of people who already had the name in 2020. The SSA charts elsewhere on this page are still the better way to see how the name rose, fell, or shifted across generations.
Gender in the 2020 Census
In the 2020 Census, Harlo was recorded as predominantly female. Out of 403 people with this name in that snapshot, 39.0% were male and 61.0% were female. That is very close to the long-run birth pattern in SSA records, where the name is female 59.3% of the time.
Census Count
403
people with this name
Census Rank
#24,063
among Census first names
Frequency Rate
0.13
per 100,000 people
Recorded Race and Hispanic Origin in the 2020 Census
In the 2020 Census, the first name Harlo was most commonly recorded among people who identified as White (73.58%). The next largest recorded groups were Hispanic (11.11%) and Two or More Races (6.42%).
These percentages describe the people who had the first name Harlo in the 2020 Census. They do not tell you the deeper meaning or origin of the name itself.
2020 Census demographic breakdown
Each row shows a recorded Census category for people with the first name Harlo.
| Group | Share | Count |
|---|---|---|
| White | 73.58% | 298 |
| Hispanic | 11.11% | 45 |
| Two or More Races | 6.42% | 26 |
| Black | 5.68% | 23 |
| Asian and Pacific Islander | 1.98% | 8 |
| American Indian and Alaska Native | 1.23% | 5 |
The Census published separate sex and race/origin tables for first names, so their total counts can differ slightly for the same name. That is why the race section focuses on the demographic mix rather than repeating a second headline count.
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.
How common was Harlo in the 2020 Census?
The 2020 Census recorded 403 people with the first name Harlo. That placed it at #24,063 in the published Census first-name tables, or 0.13 people per 100,000.
Why is the Census count different from the living estimate?
Because they measure different things. The Census number is a count of people with the name in 2020. The living estimate is a current model based on SSA birth records and survival rates, so it aims to estimate how many people with the name are alive now.
What does the SSA popularity chart show?
The popularity chart tracks birth registrations, not people currently alive. It shows how often Harlo was given to babies from 1880 through 2024, which is why it is the best tool on the page for seeing long-run naming trends.
What does the Census say about the gender split for Harlo?
In the 2020 Census snapshot, Harlo was recorded as predominantly female. The published split was 39.0% male and 61.0% female.
What does the Census say about the background of people named Harlo?
In the 2020 Census, the first name Harlo was most commonly recorded among people who identified as White (73.58%). The next largest recorded groups were Hispanic (11.11%) and Two or More Races (6.42%). These percentages describe the people who had the name in the 2020 Census, not the deeper meaning or origin of the name itself.
Why can the Census sex total and race total differ slightly?
The Census published separate first-name tables for sex and for race and Hispanic origin. Those totals can differ slightly for the same name, so the page uses them as two related snapshots rather than treating them as perfectly interchangeable counts.
Does every first name have Census demographic data?
No. The public Census first-name tables only include names that met the Bureau's publication rules. That means some names on this site will have SSA history but no published Census demographic snapshot.
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.
Why can Harlo have a lot of living bearers even if it is not trendy now?
Because a name can build up a large population over many decades. Harlo peaked in 2023, and the average living bearer is about 11 years old, so a name can still have millions of living bearers even after it stops feeling current for newborns.
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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