How Many People Are Named Kei?
people named Kei are alive in the United States today (estimate)
About 1 in 423,001 people in the US has this name
Based on 837 babies named Kei in Social Security records from 1920 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
40 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Kei, 22.6% were girls and 77.4% were boys. The share of girls among babies named Kei fell from 45.5% in the 1980s to 5.9% in the 2020s.
👥 Age Distribution
The average person named Kei alive today is about 20 years old, and 72% are under 30. Half of them were between 9 and 31 in 2025.
📈 Popularity Over Time
Kei first appears in the records in 1920 and was given most often in 2015, to 40 babies. In 2025, 14 babies got the name.
Babies given the name each year, 1920 to 2025
🏆 Rank History
Kei has never been one of the 100 most popular boys' names. Its best rank was #3,401, in 2015. In 2025 it ranked #6,280. Among girls, its best rank was #6,515, in 1980.
| Boys | Girls | |
|---|---|---|
| Rank in 2025 | #6,280 | Not ranked |
| Best rank | #3,401 (2015) | #6,515 (1980) |
| Years in the top 100 | None | None |
| Rank in its biggest decade | #4,591 in the 2010s | #9,814 in the 1980s |
📍 State-Wise Distribution
People named Kei alive today, by the state where they were born (estimate; state records start in 1910).
More people named Kei were born in California than in any other state: about 75 of those alive today. Compared with the national rate in the same years, Kei was given about 8.2 times as often in California.
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