Keith Hernandez
There are approximately 1,255 people named Keith Hernandez living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 273,111 Americans.
This estimate combines SSA birth records for the first name Keith with Census Bureau frequency data for the surname Hernandez. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1,255
1 in 273,111
Named Keith
355K
Alive today
Named Hernandez
1.2M
Alive today
US population
343M
Denominator
Estimated living: 355K
Rarity: Common
Gender: Male
Peak year: 1957
Average age: 55
Estimated bearers: 1.2M
Rarity: Very Common
Census rank: #11
Per 100K: 353.68
Top ancestry: Hispanic (94.9%)
First name trend
Keith: popularity over time
Year-by-year SSA birth registrations for the first name Keith. The peak year was 1957 with 12,483 births. The average person named Keith today is 55 years old.
Babies born per year
Ethnicity
Ancestry of the Hernandez surname
Self-reported race and ethnicity breakdown for people with the surname Hernandez, from the 2010 US Census Bureau. The largest group is Hispanic at 94.9%.
- Hispanic or Latino94.9%
- White3.8%
- Asian and Pacific Islander0.6%
- Black or African American0.4%
- American Indian and Alaska Native0.2%
- Two or more races0.2%
Methodology
How we calculated this
The first name Keith has a living-bearer frequency of 0.1035% of the US population, based on 354,908 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Hernandez appears at a rate of 353.68 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.3537%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1,255 people with the full name Keith Hernandez. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Keith
Related
Other people with the surname Hernandez
FAQ
Keith Hernandez: questions and answers
How many people are named Keith Hernandez?
We estimate approximately 1,255 people in the United States share the full name Keith Hernandez. That works out to about 1 in 273,111 Americans. This is calculated by combining the first-name frequency (0.1035%) with the surname frequency (353.68 per 100K) against the current US population.
How rare is the name Keith Hernandez?
We classify Keith Hernandez as "Rare". About 1 in 273,111 Americans share this exact first and last name combination.
Is Keith a male or female name?
Keith is predominantly male. Out of 439,808 total SSA registrations, 99.5% were male and 0.5% were female. See the full Keith 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.