Isaac Boy
How popular is Isaac?
#47 boy name in 2025
5,953 baby boys were named Isaac in the US in 2025, making it the 47th most popular boy name. Another 10 girls got the name (#9,454 for girls).
Isaac popularity over time
Boys Girls
| Rank in 2025 | #47 for boys (▼ 6 from 2024) |
|---|---|
| Babies in 2025 | 5,953 boys, 10 girls |
| 10-year trend | Falling (-40% babies vs 2015) |
| Earlier ranks | #31 in 2015, #39 in 2020 |
| Peak year | 2007 (10,274 boys) |
| Highest rank | #28 in 2013 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 4% in a class of 25 kids born in 2025 |
Isaac counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Isaac family of names ranked #52 for boys in 2025 (#45 the year before), with 6,091 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 Isaac is most popular
Babies named Isaac per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- District of Columbia: 8.0 per 1,000 (118 boys)
- Maryland: 5.8 per 1,000 (692 boys)
- Nebraska: 5.7 per 1,000 (246 boys)
- Nevada: 5.4 per 1,000 (310 boys)
- Massachusetts: 5.4 per 1,000 (745 boys)
Isaac by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 2,311 | #62 |
| 1890s | 1,735 | #92 |
| 1900s | 1,638 | #116 |
| 1910s | 4,952 | #130 |
| 1920s | 6,552 | #190 |
| 1930s | 4,715 | #230 |
| 1940s | 5,064 | #246 |
| 1950s | 5,479 | #282 |
| 1960s | 4,605 | #349 |
| 1970s | 10,480 | #151 |
| 1980s | 18,374 | #137 |
| 1990s | 40,271 | #64 |
| 2000s | 90,761 | #37 |
| 2010s | 94,574 | #28 |
| 2020s | 39,997 | #39 |
Boy names about as popular as Isaac
Questions
- Is Isaac a boy or girl name?
- Isaac is mostly a boy name. Over the last 10 years, 100% of babies named Isaac were boys.
- How popular is the name Isaac?
- 5,953 baby boys were named Isaac in the US in 2025, making it the 47th most popular boy name. Another 10 girls got the name (#9,454 for girls).
- When was Isaac most popular?
- Isaac peaked in 2007, when 10,274 boys were given the name. Its highest rank was #28 in 2013.
- How many people are named Isaac?
- 332,292 babies have been named Isaac in the US since 1880. We estimate about 300,876 of them are alive in 2026, with a median age of 18.
- Where is Isaac most popular?
- From 2021 to 2025, Isaac was most common in District of Columbia, at 8.0 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.