Isaih Boy
How popular is Isaih?
#9,710 boy name in 2025
7 baby boys were named Isaih in the US in 2025, making it the 9710th most popular boy name.
1,351living people named Isaih (est.)
24median age of people named Isaih
1,510babies named Isaih since 1880
1 in 473,620US babies born in 2025
Isaih popularity over time
| Rank in 2025 | #9,710 for boys |
|---|---|
| Babies in 2025 | 7 boys |
| 10-year trend | Falling fast (-63% babies vs 2015) |
| Earlier ranks | #4,888 in 2015, #5,695 in 2020 |
| Peak year | 1999 (74 boys) |
| Highest rank | #1,073 in 1894 |
| First recorded | 1894 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Isaih counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Isai family of names ranked #535 for boys in 2025 (#536 the year before), with 544 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.
Isaih by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1890s | 5 | #1,073 |
| 1910s | 54 | #2,044 |
| 1920s | 46 | #2,330 |
| 1930s | 15 | #2,465 |
| 1940s | 19 | #2,918 |
| 1950s | 18 | #3,023 |
| 1960s | 6 | #3,600 |
| 1980s | 83 | #2,539 |
| 1990s | 431 | #1,483 |
| 2000s | 583 | #1,720 |
| 2010s | 199 | #2,797 |
| 2020s | 51 | #5,695 |
Boy names about as popular as Isaih
Questions
- Is Isaih a boy or girl name?
- Isaih is mostly a boy name. Over the last 10 years, 100% of babies named Isaih were boys.
- How popular is the name Isaih?
- 7 baby boys were named Isaih in the US in 2025, making it the 9710th most popular boy name.
- When was Isaih most popular?
- Isaih peaked in 1999, when 74 boys were given the name. Its highest rank was #1,073 in 1894.
- How many people are named Isaih?
- 1,510 babies have been named Isaih in the US since 1880. We estimate about 1,351 of them are alive in 2026, with a median age of 24.
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.