How Many People Are Named Zilpha?
An estimated 20 people in the United States have the first name Zilpha. It is almost exclusively a female name. The average bearer is 97 years old, and Zilpha peaked in popularity in 1918 with 24 births that year.
Below you will find a full statistical profile of Zilpha 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 Zilpha paired with any surname.
Key Insights
- With an average bearer age of 97, Zilpha is a vintage name most associated with earlier generations. Most living bearers were born before 1939.
- Zilpha is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
20
About 1 in 17,137,717 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
97
years old
Peak Year
1918
24 births
Total Registered
570
since 1880
Gender Distribution for Zilpha
Zilpha is almost exclusively a female name. Out of 570 total births registered, 100.0% were female.
Zilpha as a female name
Ranked #4,690 in 1943
6 female births in 1943
Peak: 1918 (24 births)
Zilpha: Popularity Over Time
SSA records for Zilpha span from the 1880s to the 1940s, covering 7 decades of naming data. The most popular decade for this name was the 1910s, when 157 babies were registered. Zilpha has declined significantly from its peak in the 1910s. Recent registrations are a fraction of what they were at the name's height.
Zilpha by Decade
How has Zilpha 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.
Zilpha by State
Zilpha + Last Name Combinations
How many people share a full name with Zilpha as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Zilpha
Other first names starting with Z with a similar number of bearers.
Zilpha: Questions and Answers
How many people in the U.S. are named Zilpha?
We estimate approximately 20 people named Zilpha 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 17,137,717 Americans share this first name.
Is Zilpha a common name?
Zilpha is classified as "Very Rare" and is more popular than 39.9% of all first names in the SSA database. A total of 570 births have been registered with this name since 1880.
When was Zilpha most popular?
Zilpha reached peak popularity in 1918, when 24 babies were given this name. The average age of a living person named Zilpha is approximately 97 years old, reflecting when the name was most commonly given.
Is Zilpha a female name?
Zilpha is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Zilpha Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Zilpha Smith, Zilpha Johnson, Zilpha 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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