How Many People Are Named Si?
people named Si are alive in the United States today (estimate)
About 1 in 2,096,839 people in the US has this name
Based on 185 babies named Si in Social Security records from 1927 to 2017, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
15 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Si, 11.6% were girls and 88.4% were boys.
👥 Age Distribution
The average person named Si alive today is about 28 years old, and 63% are under 30. Half of them were between 14 and 38 in 2025.
📈 Popularity Over Time
Si first appears in the records in 1927 and was given most often in 2013, to 15 babies. The last year it was given to at least 5 babies of one sex was 2017.
Babies given the name each year, 1927 to 2017
🏆 Rank History
Si has never been one of the 100 most popular boys' names. Its best rank was #2,931, in 1934. Among girls, its best rank was #13,180, in 2011.
| Boys | Girls | |
|---|---|---|
| Rank in 2025 | Not ranked | Not ranked |
| Best rank | #2,931 (1934) | #13,180 (2011) |
| Years in the top 100 | None | None |
| Rank in its biggest decade | #12,459 in the 2010s | #26,240 in the 2000s |
📍 State-Wise Distribution
People named Si alive today, by the state where they were born (estimate; state records start in 1910).
More people named Si were born in New York than in any other state: about 11 of those alive today.
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