Harlo
Harlo is given to both girls and boys: 43 girls and 29 boys were given it in 2025 (#3,537 among girls’ names and #3,792 among boys’, #4,402 among all names counting both); 753 Americans have been recorded with it since 1916 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Harlo by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Harlo?
#3,537 among girls’ names, 2025
Harlo rose from #6,826 in 2015 to #3,537 in 2025 among girls’ names; its share of girls born rose from 10.1 to 26.8 per million.
78 babies in 2023, the peak
Harlo peaked in 2023, when 78 babies were given it (47 girls, #3,398 among girls’ names). The 72 births of 2025 (girls and boys) are 92% of that peak.
Births by sex.
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2025 | 43 | #3,537 | 29 | #3,792 |
| 2024 | 26 | #5,061 | 35 | #3,351 |
| 2023 | 47 | #3,398 | 31 | #3,654 |
| 2022 | 27 | #4,956 | 21 | #4,760 |
| 2021 | 36 | #4,048 | 19 | #4,986 |
| 2020 | 31 | #4,389 | 7 | #9,924 |
| 2019 | 38 | #3,872 | under 5 | |
| 2018 | 21 | #5,858 | under 5 | |
| 2017 | 22 | #5,723 | under 5 | |
| 2016 | 18 | #6,743 | 5 | #12,900 |
Every recorded year (36)
| Year | Girls | Girls’ rank | Boys | Boys’ rank |
|---|---|---|---|---|
| 2015 | 18 | #6,826 | 7 | #9,923 |
| 2014 | 21 | #6,073 | 7 | #10,015 |
| 2013 | 12 | #9,226 | 6 | #11,220 |
| 2012 | 16 | #7,582 | 6 | #11,287 |
| 2011 | 23 | #5,804 | 6 | #11,336 |
| 2010 | 21 | #6,257 | under 5 | |
| 2009 | 17 | #7,461 | 5 | #13,150 |
| 2008 | 10 | #11,085 | under 5 | |
| 1950 | under 5 | 5 | #3,895 | |
| 1949 | under 5 | 6 | #3,479 | |
| 1946 | under 5 | 5 | #3,726 | |
| 1945 | under 5 | 5 | #3,503 | |
| 1938 | under 5 | 10 | #2,388 | |
| 1937 | under 5 | 7 | #3,023 | |
| 1935 | under 5 | 8 | #2,805 | |
| 1933 | under 5 | 8 | #2,843 | |
| 1929 | under 5 | 5 | #4,226 | |
| 1928 | under 5 | 8 | #3,203 | |
| 1927 | under 5 | 6 | #3,944 | |
| 1926 | under 5 | 5 | #4,474 | |
| 1925 | under 5 | 8 | #3,251 | |
| 1923 | under 5 | 7 | #3,617 | |
| 1920 | under 5 | 8 | #3,333 | |
| 1919 | under 5 | 8 | #3,226 | |
| 1918 | under 5 | 6 | #3,913 | |
| 1916 | under 5 | 7 | #3,316 |
Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.
Is Harlo a boy’s or a girl’s name?
Of the 753 Americans recorded as Harlo, 59% are girls and 41% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Harlo: the SSA national file counts each sex separately.
How many people are named Harlo, and how old are they?
An estimated 643 Americans named Harlo and born in the U.S. are alive in 2026 (85% of everyone recorded); the median is 6 years old and half are between 3 and 12. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 403 people named Harlo (246 women and girls, 157 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 313 born in the U.S. The Census count is 29% above that prediction. Possible reasons: the Census records the name people give, which for many is the short form Harlo rather than the name on their birth record, and it counts people born abroad, whom SSA’s files leave out.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 8 names spelled alike, given to 16,747 babies since 1880, Harlo is the fourth most given (4.5% of them). In 2025 it was given to 72 of their 430 babies (17%), the second most given that year.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Harlo
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Harlo and names like it
- Compare Harlo and HarleeBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sHarlo peaked in 2023.
- Texas’s most given namesThe state where SSA recorded the most babies named Harlo since 1910.
- The top names of 2023The year the most babies were named Harlo.
- The names of Generation AlphaMost people named Harlo alive today were born 2013-2025.
- Names starting with HMost given first.