Home / Name Directory / Cynthia
How Many People Are Named Cynthia?
Estimated people named Cynthia living in the U.S. today
558,182
Gender distribution
0% male · 100% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 713,161
- Peak year: 1957 (39,416 births)
- Estimated living today: 558,182
Cynthia by age group — who carries the name today?
Cynthia popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Cynthia
Cynthia has been recorded by the Social Security Administration since the 19th century dataset began. In total, 713,161 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 558,182 bearers are still living — roughly 1 in 612 Americans. The name's strongest decade shapes how old most Cynthias 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 Cynthia in the US?
An estimated 558,182 people named Cynthia are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Cynthia common — about 1 in 612 Americans.
Is Cynthia a boy or girl name?
In SSA records, Cynthia is 0% male and 100% female, so it is predominantly a female name.
When was Cynthia most popular?
Cynthia peaked in 1957, when 39,416 babies were given the name. Its current trend is declining compared with the previous decade.
How rare is the name Cynthia?
Cynthia ranks #74 of 104,819 first names recorded by the SSA, with a rarity score of 33 out of 100 (higher means rarer).