Isaiah Rumer
There are approximately 1 people named Isaiah Rumer living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Isaiah with Census Bureau frequency data for the surname Rumer. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Isaiah
242K
Alive today
Named Rumer
954
Alive today
US population
343M
Denominator
Estimated living: 242K
Rarity: Common
Gender: Male
Peak year: 2006
Average age: 19
Top Census group: Hispanic or Latino (32.0%)
Estimated bearers: 954
Rarity: Very Rare
Census rank: #30,128
Per 100K: 0.28
Top ancestry: White (90.1%)
First name trend
Isaiah: popularity over time
Year-by-year SSA birth registrations for the first name Isaiah. The peak year was 2006 with 10,483 births. The average person named Isaiah today is 19 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Isaiah
Self-reported race and ethnicity breakdown for people with the first name Isaiah, from the 2020 US Census Bureau first-name tables. The largest published group is Hispanic or Latino at 32.0%.
The bar chart below shows how people with the first name Isaiah 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 Isaiah at the time of the Census. A first name does not determine a person's race or ethnicity.
- Hispanic or Latino32.0% · 56,313
- Black or African American29.5% · 51,897
- White24.8% · 43,550
- Two or more races10.4% · 18,298
- Asian and Pacific Islander2.1% · 3,744
- American Indian and Alaska Native1.1% · 1,984
Ethnicity
Ancestry of the Rumer surname
Self-reported race and ethnicity breakdown for people with the surname Rumer, from the 2020 US Census Bureau. The largest group is White at 90.1%.
The bar chart below shows how people with the surname Rumer 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 Rumer at the time of the Census. A surname does not determine a person's race or ethnicity.
- White90.1% · 750
- Two or more races4.2% · 35
- Hispanic or Latino3.2% · 27
- Black or African American1.3% · 11
- Asian and Pacific Islander0.7% · 6
- American Indian and Alaska Native0.4% · 3
Methodology
How we calculated this
The first name Isaiah has a living-bearer frequency of 0.0705% of the US population, based on 241,516 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 Isaiah right now.
The surname Rumer appears at a rate of 0.28 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0003%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Isaiah Rumer. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Isaiah
FAQ
Isaiah Rumer: questions and answers
How many people are named Isaiah Rumer?
We estimate approximately 1 people in the United States share the full name Isaiah Rumer. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0705%) with the surname frequency (0.28 per 100K) against the current US population.
How rare is the name Isaiah Rumer?
We classify Isaiah Rumer as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Isaiah a male or female name?
Isaiah is predominantly male. Out of 249,316 total SSA registrations, 99.7% were male and 0.3% were female. See the full Isaiah 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 many people have the full name Isaiah Rumer?
Find out how common the name Isaiah Rumer is on our sister site HowManyOfMe.org — a quick modern estimate with the living-bearer count front and centre.