How old are you, compared to everyone else?
87.4% of living Americans are younger than you
Of an estimated 274.8 million people alive today who were born in the United States, about 240.2 million were born after you and 34.7 million before you.
4,015,166 babies were born in 1955; roughly 3 million of them are still alive, which is 74.2% of the cohort. You turn 70 this year.
The other calculators
Based on 274,814,067 people estimated to be alive today from US births between 1880 and 2025, using Social Security Administration birth records and cohort life tables. It counts people born in the United States, so it misses anyone who arrived later, and births under five per name per year are not published — which puts this figure roughly 5% below the true US-born population.