Alonzo Mourning
There are approximately 1 people named Alonzo Mourning 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 Alonzo with Census Bureau frequency data for the surname Mourning. 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 Alonzo
32K
Alive today
Named Mourning
925
Alive today
US population
343M
Denominator
Estimated living: 32K
Rarity: Uncommon
Gender: Male
Peak year: 2022
Average age: 38
Estimated bearers: 925
Rarity: Very Rare
Census rank: #29,793
Per 100K: 0.27
Top ancestry: White (62.9%)
First name trend
Alonzo: popularity over time
Year-by-year SSA birth registrations for the first name Alonzo. The peak year was 2022 with 651 births. The average person named Alonzo today is 38 years old.
Babies born per year
Ethnicity
Ancestry of the Mourning surname
Self-reported race and ethnicity breakdown for people with the surname Mourning, from the 2010 US Census Bureau. The largest group is White at 62.9%.
- White62.9%
- Black or African American29.8%
- Two or more races3.8%
- Hispanic or Latino3.2%
- Unknown or suppressed0.4%
Methodology
How we calculated this
The first name Alonzo has a living-bearer frequency of 0.0094% of the US population, based on 32,242 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Mourning appears at a rate of 0.27 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0003%.
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 Alonzo Mourning. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Alonzo Mourning: questions and answers
How many people are named Alonzo Mourning?
We estimate approximately 1 people in the United States share the full name Alonzo Mourning. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0094%) with the surname frequency (0.27 per 100K) against the current US population.
How rare is the name Alonzo Mourning?
We classify Alonzo Mourning as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Alonzo a male or female name?
Alonzo is predominantly male. Out of 45,514 total SSA registrations, 99.7% were male and 0.3% were female. See the full Alonzo 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.