Issac Boy
How popular is Issac?
#915 boy name in 2025
258 baby boys were named Issac in the US in 2025, making it the 915th most popular boy name.
Issac popularity over time
Boys Girls
| Rank in 2025 | #915 for boys (▼ 69 from 2024) |
|---|---|
| Babies in 2025 | 258 boys |
| 10-year trend | Falling (-49% babies vs 2015) |
| Earlier ranks | #562 in 2015, #625 in 2020 |
| Peak year | 2008 (820 boys) |
| Highest rank | #376 in 2008 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.2% in a class of 25 kids born in 2025 |
Issac counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Issac family of names ranked #683 for boys in 2025 (#648 the year before), with 370 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Issac | 258 | 70% |
| Izak | 23 | 6% |
| Isac | 22 | 6% |
| Isak | 38 | 10% |
| Isacc | 10 | 3% |
| Izac | 7 | 2% |
| Issak | 5 | 1% |
| Izack | 7 | 2% |
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 Issac is most popular
Babies named Issac per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
Issac by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 137 | #416 |
| 1890s | 99 | #509 |
| 1900s | 109 | #492 |
| 1910s | 371 | #605 |
| 1920s | 555 | #826 |
| 1930s | 501 | #793 |
| 1940s | 562 | #773 |
| 1950s | 731 | #753 |
| 1960s | 608 | #889 |
| 1970s | 1,333 | #614 |
| 1980s | 1,852 | #592 |
| 1990s | 3,495 | #454 |
| 2000s | 6,790 | #376 |
| 2010s | 5,305 | #425 |
| 2020s | 2,106 | #625 |
Boy names about as popular as Issac
Questions
- Is Issac a boy or girl name?
- Issac is mostly a boy name. Over the last 10 years, 100% of babies named Issac were boys.
- How popular is the name Issac?
- 258 baby boys were named Issac in the US in 2025, making it the 915th most popular boy name.
- When was Issac most popular?
- Issac peaked in 2008, when 820 boys were given the name. Its highest rank was #376 in 2008.
- How many people are named Issac?
- 24,571 babies have been named Issac in the US since 1880. We estimate about 21,807 of them are alive in 2026, with a median age of 21.
- Where is Issac most popular?
- From 2021 to 2025, Issac was most common in Arkansas, 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.