Katharine Ross
There are approximately 21 people named Katharine Ross living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 16,321,635 Americans.
This estimate combines SSA birth records for the first name Katharine with Census Bureau frequency data for the surname Ross. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
21
1 in 16,321,635
Named Katharine
27K
Alive today
Named Ross
267K
Alive today
US population
343M
Denominator
Estimated living: 27K
Rarity: Uncommon
Gender: Female
Peak year: 1982
Average age: 45
Estimated bearers: 267K
Rarity: Common
Census rank: #98
Per 100K: 77.76
Top ancestry: White (69.0%)
First name trend
Katharine: popularity over time
Year-by-year SSA birth registrations for the first name Katharine. The peak year was 1982 with 947 births. The average person named Katharine today is 45 years old.
Babies born per year
Ethnicity
Ancestry of the Ross surname
Self-reported race and ethnicity breakdown for people with the surname Ross, from the 2010 US Census Bureau. The largest group is White at 69.0%.
- White69.0%
- Black or African American24.5%
- Hispanic or Latino2.8%
- Two or more races2.3%
- American Indian and Alaska Native0.9%
- Asian and Pacific Islander0.6%
Methodology
How we calculated this
The first name Katharine has a living-bearer frequency of 0.0078% of the US population, based on 26,798 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Ross appears at a rate of 77.76 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0778%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 21 people with the full name Katharine Ross. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Katharine
Related
Other people with the surname Ross
FAQ
Katharine Ross: questions and answers
How many people are named Katharine Ross?
We estimate approximately 21 people in the United States share the full name Katharine Ross. That works out to about 1 in 16,321,635 Americans. This is calculated by combining the first-name frequency (0.0078%) with the surname frequency (77.76 per 100K) against the current US population.
How rare is the name Katharine Ross?
We classify Katharine Ross as "Very Rare". About 1 in 16,321,635 Americans share this exact first and last name combination.
Is Katharine a male or female name?
Katharine is predominantly female. Out of 41,215 total SSA registrations, 0.0% were male and 100.0% were female. See the full Katharine 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.