Zenna Henderson
There are approximately 1 people named Zenna Henderson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Zenna with Census Bureau frequency data for the surname Henderson. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Zenna
358
Alive today
Named Henderson
254K
Alive today
US population
343M
Denominator
Estimated living: 358
Rarity: Very Rare
Gender: Female
Peak year: 2023
Average age: 19
Estimated bearers: 254K
Rarity: Common
Census rank: #109
Per 100K: 74.04
Top ancestry: White (59.6%)
First name trend
Zenna: popularity over time
Year-by-year SSA birth registrations for the first name Zenna. The peak year was 2023 with 24 births. The average person named Zenna today is 19 years old.
Babies born per year
Ethnicity
Ancestry of the Henderson surname
Self-reported race and ethnicity breakdown for people with the surname Henderson, from the 2010 US Census Bureau. The largest group is White at 59.6%.
- White59.6%
- Black or African American34.0%
- Two or more races2.6%
- Hispanic or Latino2.5%
- American Indian and Alaska Native0.9%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Zenna has a living-bearer frequency of 0.0001% of the US population, based on 358 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Henderson appears at a rate of 74.04 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0740%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Zenna Henderson. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people with the surname Henderson
FAQ
Zenna Henderson: questions and answers
How many people are named Zenna Henderson?
We estimate approximately 1 people in the United States share the full name Zenna Henderson. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0001%) with the surname frequency (74.04 per 100K) against the current US population.
How rare is the name Zenna Henderson?
We classify Zenna Henderson as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Zenna a male or female name?
Zenna is predominantly female. Out of 517 total SSA registrations, 0.0% were male and 100.0% were female. See the full Zenna profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.