Kathleen Robertson
There are approximately 236 people named Kathleen Robertson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 1,452,349 Americans.
This estimate combines SSA birth records for the first name Kathleen with Census Bureau frequency data for the surname Robertson. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
236
1 in 1,452,349
Named Kathleen
452K
Alive today
Named Robertson
179K
Alive today
US population
343M
Denominator
Estimated living: 452K
Rarity: Common
Gender: Female
Peak year: 1951
Average age: 63
Estimated bearers: 179K
Rarity: Common
Census rank: #175
Per 100K: 52.09
Top ancestry: White (73.4%)
First name trend
Kathleen: popularity over time
Year-by-year SSA birth registrations for the first name Kathleen. The peak year was 1951 with 26,749 births. The average person named Kathleen today is 63 years old.
Babies born per year
Ethnicity
Ancestry of the Robertson surname
Self-reported race and ethnicity breakdown for people with the surname Robertson, from the 2010 US Census Bureau. The largest group is White at 73.4%.
- White73.4%
- Black or African American20.6%
- Hispanic or Latino2.5%
- Two or more races2.1%
- American Indian and Alaska Native0.9%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Kathleen has a living-bearer frequency of 0.1319% of the US population, based on 452,244 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Robertson appears at a rate of 52.09 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0521%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 236 people with the full name Kathleen Robertson. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Kathleen
Related
Other people with the surname Robertson
FAQ
Kathleen Robertson: questions and answers
How many people are named Kathleen Robertson?
We estimate approximately 236 people in the United States share the full name Kathleen Robertson. That works out to about 1 in 1,452,349 Americans. This is calculated by combining the first-name frequency (0.1319%) with the surname frequency (52.09 per 100K) against the current US population.
How rare is the name Kathleen Robertson?
We classify Kathleen Robertson as "Very Rare". About 1 in 1,452,349 Americans share this exact first and last name combination.
Is Kathleen a male or female name?
Kathleen is predominantly female. Out of 715,129 total SSA registrations, 0.2% were male and 99.8% were female. See the full Kathleen 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.