Isiah Boy
How popular is Isiah?
#1,477 boy name in 2025
120 baby boys were named Isiah in the US in 2025, making it the 1477th most popular boy name.
Isiah popularity over time
Boys Girls
| Rank in 2025 | #1,477 for boys (▼ 169 from 2024) |
|---|---|
| Babies in 2025 | 120 boys |
| 10-year trend | Falling (-33% babies vs 2015) |
| Earlier ranks | #1,089 in 2015, #1,353 in 2020 |
| Peak year | 2001 (822 boys) |
| Highest rank | #268 in 1894 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.1% in a class of 25 kids born in 2025 |
Isiah counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Isiah family of names ranked #1,162 for boys in 2025 (#1,048 the year before), with 147 babies in all.
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Isiah is most popular
Babies named Isiah per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
Isiah by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 251 | #294 |
| 1890s | 313 | #268 |
| 1900s | 340 | #319 |
| 1910s | 894 | #329 |
| 1920s | 1,270 | #513 |
| 1930s | 964 | #565 |
| 1940s | 1,056 | #559 |
| 1950s | 1,009 | #659 |
| 1960s | 687 | #792 |
| 1970s | 541 | #1,094 |
| 1980s | 1,653 | #465 |
| 1990s | 5,471 | #341 |
| 2000s | 7,042 | #336 |
| 2010s | 2,408 | #589 |
| 2020s | 811 | #1,308 |
Boy names about as popular as Isiah
Questions
- Is Isiah a boy or girl name?
- Isiah is mostly a boy name. Over the last 10 years, 100% of babies named Isiah were boys.
- How popular is the name Isiah?
- 120 baby boys were named Isiah in the US in 2025, making it the 1477th most popular boy name.
- When was Isiah most popular?
- Isiah peaked in 2001, when 822 boys were given the name. Its highest rank was #268 in 1894.
- How many people are named Isiah?
- 24,721 babies have been named Isiah in the US since 1880. We estimate about 19,473 of them are alive in 2026, with a median age of 26.
- Where is Isiah most popular?
- From 2021 to 2025, Isiah was most common in Ohio, at 0.1 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.