How Many People Are Named Foster?
people named Foster are alive in the United States today (estimate)
About 1 in 45,742 people in the US has this name
Based on 13,408 babies named Foster in Social Security records from 1880 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
278 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
Of the babies given the name Foster, 3.5% were girls and 96.5% were boys. The share has stayed close to this since the 1880s: 0% of the babies were girls then and 7.8% in the 2020s.
👥 Age Distribution
The average person named Foster alive today is about 28 years old, and 65% are under 30. Half of them were between 7 and 45 in 2025.
📈 Popularity Over Time
Foster first appears in the records in 1880, and 2025 was its biggest year so far, with 278 babies.
Babies given the name each year, 1880 to 2025
🏆 Rank History
Foster has never been one of the 100 most popular boys' names. Its best rank was #280, in 1896. In 2025 it ranked #901.
| Boys | |
|---|---|
| Rank in 2025 | #901 |
| Best rank | #280 (1896) |
| Years in the top 100 | None |
| Rank in its biggest decade | #1,049 in the 2010s |
📍 State-Wise Distribution
People named Foster alive today, by the state where they were born (estimate; state records start in 1910).
More people named Foster were born in Texas than in any other state: about 574 of those alive today. Compared with the national rate in the same years, Foster was given 3.2 times as often in Louisiana, 2.9 times in Alabama and 2.9 times in Kentucky.
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