Dennis Rehberg
There are approximately 2 people named Dennis Rehberg living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 171,377,169 Americans.
This estimate combines SSA birth records for the first name Dennis with Census Bureau frequency data for the surname Rehberg. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
2
1 in 171,377,169
Named Dennis
442K
Alive today
Named Rehberg
1.9K
Alive today
US population
343M
Denominator
Estimated living: 442K
Rarity: Common
Gender: Male
Peak year: 1952
Average age: 64
Estimated bearers: 1.9K
Rarity: Rare
Census rank: #17,625
Per 100K: 0.54
Top ancestry: White (94.3%)
First name trend
Dennis: popularity over time
Year-by-year SSA birth registrations for the first name Dennis. The peak year was 1952 with 24,605 births. The average person named Dennis today is 64 years old.
Babies born per year
Ethnicity
Ancestry of the Rehberg surname
Self-reported race and ethnicity breakdown for people with the surname Rehberg, from the 2010 US Census Bureau. The largest group is White at 94.3%.
- White94.3%
- Hispanic or Latino3.1%
- Two or more races1.2%
- Asian and Pacific Islander0.9%
Methodology
How we calculated this
The first name Dennis has a living-bearer frequency of 0.1289% of the US population, based on 441,864 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Rehberg appears at a rate of 0.54 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0005%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 2 people with the full name Dennis Rehberg. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Dennis
FAQ
Dennis Rehberg: questions and answers
How many people are named Dennis Rehberg?
We estimate approximately 2 people in the United States share the full name Dennis Rehberg. That works out to about 1 in 171,377,169 Americans. This is calculated by combining the first-name frequency (0.1289%) with the surname frequency (0.54 per 100K) against the current US population.
How rare is the name Dennis Rehberg?
We classify Dennis Rehberg as "Very Rare". About 1 in 171,377,169 Americans share this exact first and last name combination.
Is Dennis a male or female name?
Dennis is predominantly male. Out of 623,306 total SSA registrations, 99.6% were male and 0.4% were female. See the full Dennis 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.