Kathryn Boyd
There are approximately 152 people named Kathryn Boyd living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 2,254,963 Americans.
This estimate combines SSA birth records for the first name Kathryn with Census Bureau frequency data for the surname Boyd. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
152
1 in 2,254,963
Named Kathryn
293K
Alive today
Named Boyd
178K
Alive today
US population
343M
Denominator
Estimated living: 293K
Rarity: Common
Gender: Female
Peak year: 1952
Average age: 50
Estimated bearers: 178K
Rarity: Common
Census rank: #176
Per 100K: 52.03
Top ancestry: White (63.2%)
First name trend
Kathryn: popularity over time
Year-by-year SSA birth registrations for the first name Kathryn. The peak year was 1952 with 8,517 births. The average person named Kathryn today is 50 years old.
Babies born per year
Ethnicity
Ancestry of the Boyd surname
Self-reported race and ethnicity breakdown for people with the surname Boyd, from the 2010 US Census Bureau. The largest group is White at 63.2%.
- White63.2%
- Black or African American30.8%
- Two or more races2.4%
- Hispanic or Latino2.2%
- American Indian and Alaska Native1.0%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Kathryn has a living-bearer frequency of 0.0855% of the US population, based on 293,017 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Boyd appears at a rate of 52.03 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0520%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 152 people with the full name Kathryn Boyd. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Kathryn
Related
Other people with the surname Boyd
FAQ
Kathryn Boyd: questions and answers
How many people are named Kathryn Boyd?
We estimate approximately 152 people in the United States share the full name Kathryn Boyd. That works out to about 1 in 2,254,963 Americans. This is calculated by combining the first-name frequency (0.0855%) with the surname frequency (52.03 per 100K) against the current US population.
How rare is the name Kathryn Boyd?
We classify Kathryn Boyd as "Very Rare". About 1 in 2,254,963 Americans share this exact first and last name combination.
Is Kathryn a male or female name?
Kathryn is predominantly female. Out of 456,128 total SSA registrations, 0.2% were male and 99.8% were female. See the full Kathryn 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.