How Many People Are Named Marlo?
people named Marlo are alive in the United States today (estimate)
About 1 in 34,436 people in the US has this name
Based on 10,944 babies named Marlo in Social Security records from 1915 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
635 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Marlo, 68.8% were girls and 31.2% were boys. The share of girls among babies named Marlo rose from 0% in the 1920s to 54.1% in the 2020s. It was highest in the 1960s, at 86.1%.
👥 Age Distribution
The average person named Marlo alive today is about 37 years old, and 57% are between 30 and 59. Half of them were between 15 and 55 in 2025.
📈 Popularity Over Time
Marlo first appears in the records in 1915 and was given most often in 1970, to 635 babies. In 2025, 204 babies got the name.
Babies given the name each year, 1915 to 2025
🏆 Rank History
Marlo has never been one of the 100 most popular girls' names. Its best rank was #396, in 1968. In 2025 it ranked #1,839. Among boys, its best rank was #882, in 1972.
| Girls | Boys | |
|---|---|---|
| Rank in 2025 | #1,839 | #1,720 |
| Best rank | #396 (1968) | #882 (1972) |
| Years in the top 100 | None | None |
| Rank in its biggest decade | #639 in the 1970s | #1,039 in the 1970s |
📍 State-Wise Distribution
People named Marlo alive today, by the state where they were born (estimate; state records start in 1910).
More people named Marlo were born in California than in any other state: about 1,188 of those alive today. Compared with the national rate in the same years, Marlo was given 2.1 times as often in California, 1.4 times in Pennsylvania and 1.3 times in Florida.
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