How Many People Are Named Zo?
An estimated 394 people in the United States have the first name Zo. It is used for both genders, with 76.4% female. The average bearer is 9 years old, and Zo peaked in popularity in 2017 with 49 births that year.
Below you will find a full statistical profile of Zo 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 Zo paired with any surname.
Estimated Living Americans
394
About 1 in 869,935 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
76.4% confidence
Average Age
9
years old
Peak Year
2017
49 births
Total Registered
398
since 1880
Gender Distribution for Zo
Zo is a genuinely unisex name, used for both males (23.6%) and females (76.4%). Out of 398 total births registered, 94 were male and 304 were female.
Zo as a male name
Ranked #14,231 in 2024
5 male births in 2024
Peak: 2022 (16 births)
Zo as a female name
Ranked #12,112 in 2024
8 female births in 2024
Peak: 2017 (40 births)
Zo: Popularity Over Time
SSA records for Zo span from the 1950s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 208 babies were registered. While Zo is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Zo by Decade
How has Zo 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.
Zo by State
Zo + Last Name Combinations
How many people share a full name with Zo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Zo
Other first names starting with Z with a similar number of bearers.
Zo: Questions and Answers
How many people in the U.S. are named Zo?
We estimate approximately 394 people named Zo 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 869,935 Americans share this first name.
Is Zo a common name?
Zo is classified as "Very Rare" and is more popular than 82.2% of all first names in the SSA database. A total of 398 births have been registered with this name since 1880.
When was Zo most popular?
Zo reached peak popularity in 2017, when 49 babies were given this name. The average age of a living person named Zo is approximately 9 years old, reflecting when the name was most commonly given.
Is Zo a female name?
Zo is predominantly female. 76.4% of people with this name are female. See the gender breakdown above for full details.
How many Zo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Zo Smith, Zo Johnson, Zo 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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