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How Many People Are Named Dennis?
Estimated people named Dennis living in the U.S. today
426,887
Gender distribution
100% male · 0% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 623,306
- Peak year: 1952 (24,605 births)
- Estimated living today: 426,887
Dennis by age group — who carries the name today?
Dennis popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Dennis
Dennis has been recorded by the Social Security Administration since the 19th century dataset began. In total, 623,306 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 426,887 bearers are still living — roughly 1 in 801 Americans. The name's strongest decade shapes how old most Denniss you meet will be, which the age-group breakdown above shows directly. All figures are statistical estimates from public records; see our methodology for sources, the survival model, and the limits of the data (names given to fewer than five babies in a year are not published by the SSA).
Frequently asked questions
How many people are named Dennis in the US?
An estimated 426,887 people named Dennis are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Dennis uncommon — about 1 in 801 Americans.
Is Dennis a boy or girl name?
In SSA records, Dennis is 100% male and 0% female, so it is predominantly a male name.
When was Dennis most popular?
Dennis peaked in 1952, when 24,605 babies were given the name. Its current trend is declining compared with the previous decade.
How rare is the name Dennis?
Dennis ranks #107 of 104,819 first names recorded by the SSA, with a rarity score of 34 out of 100 (higher means rarer).