How Many People Are Named Francis Castro?

There are approximately 77 people named Francis Castro living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 4,451,355 Americans.

This estimate combines SSA birth records for the first name Francis with Census Bureau frequency data for the surname Castro. Below you will find a breakdown of both names, including popularity trends, gender data, and Census background data where it is available.

Estimated People with This Name

1 in 4,451,355 Americans

Combination Rarity

Rare

Very Rare Very Common

First Name

Francis

Last Name

Castro

Francis: Popularity Over Time

Year-by-year SSA birth registrations for the first name Francis. The peak year was 1918 with 7,000 births. The average person named Francis today is 60 years old.

Male

Female

Ancestry of the First Name Francis

In the 2020 Census, the first name Francis was most commonly recorded among people who identified as White (74.15%). The next largest recorded groups were Hispanic (9.18%) and Black (7.59%).

These percentages describe the people who had the first name Francis in the 2020 Census. They do not tell you the deeper origin or meaning of the name itself.

Read this as a snapshot of who already had the name in 2020, not as a trend line. The SSA chart above is still the better way to see how Francis rose or fell over time.

White

74.15%

Black

7.59%

Hispanic

9.18%

Asian/Pacific Islander

6.14%

American Indian/Alaska Native

0.90%

Two or More Races

2.05%

Ancestry of the Castro Surname

The surname Castro was most commonly recorded among people who identified as Hispanic in the 2020 Census.

This is a self-reported race and ethnicity breakdown for people who had the surname Castro in the published Census surname tables. It gives useful context around who was recorded with the name, but it does not tell the full family history of every Boone line.

White

7.21%

Black

0.74%

Hispanic

86.81%

Asian/Pacific Islander

4.23%

American Indian/Alaska Native

0.26%

Two or More Races

0.75%

How we calculated this

The first name "Francis" has an estimated frequency of 0.0358% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.

The surname "Castro" appears at a rate of 62.78 per 100,000 people in the 2020 U.S. Census.

We do not use the Census first-name snapshot for the main estimate because it is only published once every 10 years. The latest public first-name Census file is from 2020, which is already 6 years old. SSA birth records plus CDC survival data give a better current estimate of how many people with the first name Francis are likely to be alive now.

Multiplying these frequencies against the U.S. population of ~343 million gives 77 estimated people. This assumes first names and last names are statistically independent. Full methodology.

Other people named Francis

Francis Smith Francis Johnson Francis Williams Francis Brown Francis Jones Francis Garcia Francis Ford

Other people with the surname Castro

Michael Castro James Castro John Castro David Castro Robert Castro William Castro Frank Castro

Francis Castro: Questions and Answers

How many people are named Francis Castro?

We estimate approximately 77 people named Francis Castro are alive in the United States today. The first name Francis is shared by 122,838 Americans, and the surname Castro is shared by 215,182.

How rare is the name Francis Castro?

This name combination is classified as Rare, occurring at a rate of about 1 in 4,451,355 Americans. The first name Francis is common and the surname Castro is common.

Is Francis a male or female name?

Francis is predominantly male, with 90.7% of bearers being male and 9.3% female. It peaked in popularity in 1918 and the average bearer today is 60 years old.

What does the Census say about the first name Francis?

In the 2020 Census, the first name Francis was most commonly recorded among people who identified as White (74.15%). The next largest recorded groups were Hispanic (9.18%) and Black (7.59%). These percentages describe the people who had the name in the 2020 Census, not the deeper origin of the name itself.

Where does this data come from?

First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. When available, first-name Census background data comes from the 2020 U.S. Census Bureau first-name tables. Surname data comes from the 2020 U.S. Census Bureau. Full methodology.

Try another name