Tammy Brock
There are approximately 55 people named Tammy Brock living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 6,231,897 Americans.
This estimate combines SSA birth records for the first name Tammy with Census Bureau frequency data for the surname Brock. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
55
1 in 6,231,897
Named Tammy
283K
Alive today
Named Brock
67K
Alive today
US population
343M
Denominator
Estimated living: 283K
Rarity: Common
Gender: Female
Peak year: 1963
Average age: 58
Top Census group: White (84.2%)
Estimated bearers: 67K
Rarity: Uncommon
Census rank: #566
Per 100K: 19.53
Top ancestry: White (79.5%)
First name trend
Tammy: popularity over time
Year-by-year SSA birth registrations for the first name Tammy. The peak year was 1963 with 21,240 births. The average person named Tammy today is 58 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Tammy
Self-reported race and ethnicity breakdown for people with the first name Tammy, from the 2020 US Census Bureau first-name tables. The largest published group is White at 84.2%.
The bar chart below shows how people with the first name Tammy described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Tammy at the time of the Census. A first name does not determine a person's race or ethnicity.
- White84.2% · 233,423
- Black or African American6.9% · 19,143
- Two or more races3.3% · 9,200
- Hispanic or Latino2.5% · 6,863
- Asian and Pacific Islander2.2% · 6,123
- American Indian and Alaska Native0.9% · 2,558
Ethnicity
Ancestry of the Brock surname
Self-reported race and ethnicity breakdown for people with the surname Brock, from the 2020 US Census Bureau. The largest group is White at 79.5%.
The bar chart below shows how people with the surname Brock described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Brock at the time of the Census. A surname does not determine a person's race or ethnicity.
- White79.5% · 46,403
- Black or African American11.8% · 6,888
- Two or more races4.4% · 2,581
- Hispanic or Latino3.0% · 1,758
- American Indian and Alaska Native0.7% · 436
- Asian and Pacific Islander0.5% · 302
Methodology
How we calculated this
The first name Tammy has a living-bearer frequency of 0.0825% of the US population, based on 282,666 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Tammy right now.
The surname Brock appears at a rate of 19.53 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0195%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 55 people with the full name Tammy Brock. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Tammy
Related
Other people with the surname Brock
FAQ
Tammy Brock: questions and answers
How many people are named Tammy Brock?
We estimate approximately 55 people in the United States share the full name Tammy Brock. That works out to about 1 in 6,231,897 Americans. This is calculated by combining the first-name frequency (0.0825%) with the surname frequency (19.53 per 100K) against the current US population.
How rare is the name Tammy Brock?
We classify Tammy Brock as "Very Rare". About 1 in 6,231,897 Americans share this exact first and last name combination.
Is Tammy a male or female name?
Tammy is predominantly female. Out of 333,366 total SSA registrations, 0.4% were male and 99.6% were female. See the full Tammy 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 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many people share the full name Tammy Brock?
HowManyOfMe.org, our sister site, answers that with the living-bearer count in one glance.