Foster Boy
How popular is Foster?
#901 boy name in 2025
264 baby boys were named Foster in the US in 2025, making it the 901st most popular boy name. Another 14 girls got the name (#7,489 for girls).
7,567living people named Foster (est.)
20median age of people named Foster
13,408babies named Foster since 1880
1 in 11,926US babies born in 2025
Foster popularity over time
Boys Girls
| Rank in 2025 | #901 for boys (▲ 175 from 2024) |
|---|---|
| Babies in 2025 | 264 boys, 14 girls |
| 10-year trend | Rising (+35% babies vs 2015) |
| Earlier ranks | #1,032 in 2015, #961 in 2020 |
| Peak year | 2025 (264 boys) |
| Highest rank | #278 in 1894 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 93% boys, 7% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Where Foster is most popular
Babies named Foster per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
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- Alabama: 0.4 per 1,000 (44 boys)
- Louisiana: 0.4 per 1,000 (39 boys)
- Utah: 0.4 per 1,000 (36 boys)
- Indiana: 0.4 per 1,000 (59 boys)
- South Dakota: 0.3 per 1,000 (6 boys)
Foster by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 241 | #289 |
| 1890s | 351 | #278 |
| 1900s | 343 | #291 |
| 1910s | 1,406 | #353 |
| 1920s | 1,644 | #418 |
| 1930s | 1,041 | #534 |
| 1940s | 1,065 | #575 |
| 1950s | 757 | #720 |
| 1960s | 476 | #881 |
| 1970s | 359 | #1,296 |
| 1980s | 361 | #1,523 |
| 1990s | 849 | #1,078 |
| 2000s | 981 | #1,265 |
| 2010s | 1,894 | #936 |
| 2020s | 1,354 | #901 |
Boy names about as popular as Foster
Questions
- Is Foster a boy or girl name?
- Foster is mostly a boy name. Over the last 10 years, 93% of babies named Foster were boys.
- How popular is the name Foster?
- 264 baby boys were named Foster in the US in 2025, making it the 901st most popular boy name. Another 14 girls got the name (#7,489 for girls).
- When was Foster most popular?
- Foster peaked in 2025, when 264 boys were given the name. Its highest rank was #278 in 1894.
- How many people are named Foster?
- 13,408 babies have been named Foster in the US since 1880. We estimate about 7,567 of them are alive in 2026, with a median age of 20.
- Where is Foster most popular?
- From 2021 to 2025, Foster was most common in Alabama, at 0.4 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.