Josiah Davidson
There are approximately 47 people named Josiah Davidson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 7,292,645 Americans.
This estimate combines SSA birth records for the first name Josiah with Census Bureau frequency data for the surname Davidson. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
47
1 in 7,292,645
Named Josiah
141K
Alive today
Named Davidson
115K
Alive today
US population
343M
Denominator
Estimated living: 141K
Rarity: Common
Gender: Male
Peak year: 2017
Average age: 15
Top Census group: White (33.1%)
Estimated bearers: 115K
Rarity: Common
Census rank: #308
Per 100K: 33.69
Top ancestry: White (80.9%)
First name trend
Josiah: popularity over time
Year-by-year SSA birth registrations for the first name Josiah. The peak year was 2017 with 7,086 births. The average person named Josiah today is 15 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Josiah
Self-reported race and ethnicity breakdown for people with the first name Josiah, from the 2020 US Census Bureau first-name tables. The largest published group is White at 33.1%.
The bar chart below shows how people with the first name Josiah described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Josiah at the time of the Census. A first name does not determine a person's race or ethnicity.
- White33.1% · 31,464
- Black or African American28.0% · 26,668
- Hispanic or Latino27.3% · 25,997
- Two or more races7.8% · 7,442
- Asian and Pacific Islander2.6% · 2,481
- American Indian and Alaska Native1.2% · 1,127
Ethnicity
Ancestry of the Davidson surname
Self-reported race and ethnicity breakdown for people with the surname Davidson, from the 2020 US Census Bureau. The largest group is White at 80.9%.
The bar chart below shows how people with the surname Davidson described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Davidson at the time of the Census. A surname does not determine a person's race or ethnicity.
- White80.9% · 81,425
- Black or African American10.0% · 10,081
- Two or more races4.1% · 4,123
- Hispanic or Latino3.6% · 3,588
- Asian and Pacific Islander0.9% · 876
- American Indian and Alaska Native0.6% · 613
Methodology
How we calculated this
The first name Josiah has a living-bearer frequency of 0.0411% of the US population, based on 140,952 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Josiah right now.
The surname Davidson appears at a rate of 33.69 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0337%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 47 people with the full name Josiah Davidson. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Josiah
Related
Other people with the surname Davidson
FAQ
Josiah Davidson: questions and answers
How many people are named Josiah Davidson?
We estimate approximately 47 people in the United States share the full name Josiah Davidson. That works out to about 1 in 7,292,645 Americans. This is calculated by combining the first-name frequency (0.0411%) with the surname frequency (33.69 per 100K) against the current US population.
How rare is the name Josiah Davidson?
We classify Josiah Davidson as "Very Rare". About 1 in 7,292,645 Americans share this exact first and last name combination.
Is Josiah a male or female name?
Josiah is predominantly male. Out of 143,787 total SSA registrations, 99.7% were male and 0.3% were female. See the full Josiah 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 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How common is the name Josiah Davidson?
Find out how many people are called Josiah Davidson on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.