How Many People Are Named Millie?
people named Millie are alive in the United States today (estimate)
About 1 in 11,838 people in the US has this name
Based on 46,138 babies named Millie in Social Security records from 1880 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎 Rare
Peak Year
3,353 births
Trend
Rising (last 10 years)
📖 Name Origin & Meaning
Meaning:
Diminutive of MILDRED, MILLICENT and other names containing the same sound.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
Same Sound, Other Spellings
These names are pronounced like Millie in English. Counting Millie and these spellings together, about 31,659 people alive in the US have the name.
⚧ Gender Distribution
All of the babies given the name Millie in the records were girls.
👥 Age Distribution
The average person named Millie alive today is about 19 years old, and 79% are under 30. Half of them were between 2 and 18 in 2025.
📈 Popularity Over Time
Millie first appears in the records in 1880, and 2025 was its biggest year so far, with 3,353 babies.
Babies given the name each year, 1880 to 2025
🏆 Rank History
Millie never made the top 10 girls' names. Its best rank was #73, in 2025, and it was in the top 100 for 2 years, 2024 to 2025. In 2025 it ranked #73.
| Girls | |
|---|---|
| Rank in 2025 | #73 |
| Best rank | #73 (2025) |
| Years in the top 100 | 2 (2024 to 2025) |
| Rank in its biggest decade | #117 in the 2020s |
📍 State-Wise Distribution
People named Millie alive today, by the state where they were born (estimate; state records start in 1910).
More people named Millie were born in Texas than in any other state: about 2,164 of those alive today. Compared with the national rate in the same years, Millie was given 2.8 times as often in Utah, 2.3 times in Mississippi and 2.2 times in Alabama.
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