Total births
3,203
Boys' name · since 1884
Isac
Isac has 3,203 recorded births since 1884 in federal Social Security data, most heavily in 2006 -- full year-by-year trend, decade aggregates, and state rankings follow.
- #4081
- among boys today
- 3,203
- born since 1884
- 2000s
- peak decade
- 71%
- more common than other boys
3,203 babies have been named Isac since 1884, making it today's #4081 boys' name.
According to the U.S. Social Security Administration, Isac has been recorded 3,203 times among boys since 1884, currently ranked #4081 nationally and more common than 71% of boys, with its heaviest use in the 2000s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1884 to 2025.
- #4081 among boys today
- 3,203 born since 1884
- 2000s peak decade
- 71% more common than other boys
Data updated Jun 2026
The verdict
Isac is currently the #4081 boys' name in America, more common than 71% of boys - 3,203 born since 1884, peaking in the 2000s.
- #4081
- among boys today
- 3,203
- born since 1884
- 2000s
- peak decade
- 71%
- more common than other boys
Isac vs. every other boys name in current SSA rankings
#4081
of 14,294 boys in use
More common than 71% of names given to boys today.
2000s
Peak decade
38% of everyone ever named Isac was born in this single decade.
2006
Single peak year
148 babies were named Isac in 2006 - its busiest year on record.
How Isac compares
3,203 Top 16% higher than 84% of 14,294 names currently given to boys
Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.
Source U.S. Social Security Administration, national baby name data
How the numbers stack up
Isac's all-time total is 9x the median boys name, and Liam still leads by a wide margin.
| Metric | Isac | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 3,203 | 367 | 358,536 |
| Peak-year births | 148 | 23 | 22,252 |
Isac's usage pattern, beyond the headline number
Splitting Isac's full recorded timeline at 1975, 85% of its total births fall in the more recent half of the record versus 15% in the earlier half -- usage has skewed toward the present, not a one-decade spike. Its quietest year on record was 1884, with just 5 recorded births -- worth weighing against the 2006 peak of 148 to see the full range of the name's swing in popularity.
Isac at a glance
Outside the top 1,000Peak year
2006
Current rank
#4,081
Active since
1884
Isac popularity over time
Annual U.S. births registered with the Social Security Administration · 1884–2025
- Peak year (2006)
- 148
- Annual births at peak, across 142 years of records
Isac by decade
Total births in each ten-year window, peak vs trough at a glance
2000s was Isac's strongest decade.
1,210 babies received the name during that ten-year window, about 38% of all-time use.
Isac births by decade
Total births in each ten-year window
- 1880s 5
1880s
5 births
- 1890s 11
1890s
11 births
- 1900s 33
1900s
33 births
- 1910s 132
1910s
132 births
- 1920s 145
1920s
145 births
- 1930s 81
1930s
81 births
- 1940s 22
1940s
22 births
- 1950s 12
1950s
12 births
- 1960s 21
1960s
21 births
- 1970s 61
1970s
61 births
- 1980s 192
1980s
192 births
- 1990s
1990s
543 births
- 2000s
2000s
1,210 births
- 2010s
2010s
577 births
- 2020s 158
2020s
158 births
What this shows Peak: 2000s at 1,210 births (38% of all-time use).
How Isac compares to similarly-sized names
Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Isac's total volume
Isac vs 15 similarly-sized boys names
Isac by state
Where Isac concentrates geographically, total births since 1884
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | California | | 709 | 22.1% |
| #2 | Texas | | 381 | 11.9% |
| #3 | Illinois | | 61 | 1.9% |
| #4 | Arizona | | 53 | 1.7% |
| #5 | New York | | 35 | 1.1% |
| #6 | Michigan | | 18 | 0.6% |
| #7 | Colorado | | 16 | 0.5% |
| #8 | Florida | | 16 | 0.5% |
California share of Isac's total US births 22.1%
Even split
709 of 3,203 births nationwide. Compared to a flat distribution across 16 reporting states.
Isac appears in 16 states. Explore state details →
Frequently Asked Questions
How popular is the name Isac? ▼
Since 1884, Social Security records show 3,203 babies named Isac. Today it holds rank #4081 among boys. Its busiest year on record was 2006, with 148 births.
When was Isac most popular? ▼
Isac was most popular in the 2000s decade with 1,210 total births. The single peak year was 2006.
Where is Isac most popular? ▼
The top states for the name Isac are California (709 births), Texas (381 births), Illinois (61 births).
How long has the name Isac been used? ▼
Records for Isac go back to 1884, giving 142 years of history through 2025.
What names are similar to Isac? ▼
Names with a similar sound or spelling include Isaac, Isaiah, Isaias, Isai, and 4 more. These share a common prefix and are also used for boys.
What to do with Isac's data
- Isac's decade-level peak was the 2000s (1,210 total births); usage has since declined to 158 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- California records the most Isacs (709 births) -- see the full state breakdown if geography matters to your decision. California names
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Isac
Nearby Names Like Isac
Names with a similar sound, spelling, or feel to Isac
Isaac Boy
#41 331,508 births
Isaiah Boy
#56 254,020 births
Isaias Boy
#449 18,644 births
Isai Boy
#1063 7,340 births
Isadore Boy
#8318 5,714 births
Compare Isac side by side: Isac vs Isaac Isac vs Isaiah Isac vs Isaias
Related Names
Names with a similar popularity rank to Isac
Shep #4080
235 births · Peak 2023
Roosevelt #4082
37,661 births · Peak 1933
Gaston #4079
4,053 births · Peak 1918
Emerald #4083
538 births · Peak 2025
Lavern #4078
10,236 births · Peak 1924
Whitman #4084
901 births · Peak 2018
Brad #4077
83,060 births · Peak 1960
Sander #4085
1,588 births · Peak 2020
Data Sources
Data as of June 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1884–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Isac: #4081 Boys' Name - 3,203 Births, Peak 2006." NameAlmanac. Accessed via https://namealmanac.com/name/isac. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Isac draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.