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How Many People Are Named Millie?
Estimated people named Millie living in the U.S. today
24,939
Gender distribution
0% male · 100% female in SSA records.
Name scorecard
- Total U.S. births recorded (1880–2024): 42,765
- Peak year: 2024 (2,910 births)
- Estimated living today: 24,939
Millie by age group — who carries the name today?
Millie popularity over time (1880–2024)
Estimated living bearers by birth decade
About the name Millie
Millie has been recorded by the Social Security Administration since the 19th century dataset began. In total, 42,765 babies were given the name in the United States between 1880 and 2024. After adjusting each birth cohort for survival to today, an estimated 24,939 bearers are still living — roughly 1 in 13,705 Americans. The name's strongest decade shapes how old most Millies 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 Millie in the US?
An estimated 24,939 people named Millie are living in the United States today, based on SSA birth records from 1880 to 2024 adjusted for survival. That makes Millie rare — about 1 in 13,705 Americans.
Is Millie a boy or girl name?
In SSA records, Millie is 0% male and 100% female, so it is predominantly a female name.
When was Millie most popular?
Millie peaked in 2024, when 2,910 babies were given the name. Its current trend is rising compared with the previous decade.
How rare is the name Millie?
Millie ranks #1,397 of 104,819 first names recorded by the SSA, with a rarity score of 48 out of 100 (higher means rarer).