Margaret Hamilton
There are approximately 290 people named Margaret Hamilton living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 1,181,912 Americans.
This estimate combines SSA birth records for the first name Margaret with Census Bureau frequency data for the surname Hamilton. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
290
1 in 1,181,912
Named Margaret
425K
Alive today
Named Hamilton
234K
Alive today
US population
343M
Denominator
Estimated living: 425K
Rarity: Common
Gender: Female
Peak year: 1921
Average age: 60
Estimated bearers: 234K
Rarity: Common
Census rank: #119
Per 100K: 68.39
Top ancestry: White (70.2%)
First name trend
Margaret: popularity over time
Year-by-year SSA birth registrations for the first name Margaret. The peak year was 1921 with 28,521 births. The average person named Margaret today is 60 years old.
Babies born per year
Ethnicity
Ancestry of the Hamilton surname
Self-reported race and ethnicity breakdown for people with the surname Hamilton, from the 2010 US Census Bureau. The largest group is White at 70.2%.
- White70.2%
- Black or African American23.7%
- Hispanic or Latino2.5%
- Two or more races2.3%
- American Indian and Alaska Native0.8%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Margaret has a living-bearer frequency of 0.1239% of the US population, based on 424,744 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Hamilton appears at a rate of 68.39 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0684%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 290 people with the full name Margaret Hamilton. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Margaret
Related
Other people with the surname Hamilton
FAQ
Margaret Hamilton: questions and answers
How many people are named Margaret Hamilton?
We estimate approximately 290 people in the United States share the full name Margaret Hamilton. That works out to about 1 in 1,181,912 Americans. This is calculated by combining the first-name frequency (0.1239%) with the surname frequency (68.39 per 100K) against the current US population.
How rare is the name Margaret Hamilton?
We classify Margaret Hamilton as "Very Rare". About 1 in 1,181,912 Americans share this exact first and last name combination.
Is Margaret a male or female name?
Margaret is predominantly female. Out of 1,266,052 total SSA registrations, 0.3% were male and 99.7% were female. See the full Margaret 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.