Total births
615
Boys' name · since 1915
Jac
615 babies named Jac in U.S. Social Security records since 1915, with the highest year being 1956. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- #7305
- among boys today
- 615
- born since 1915
- 1950s
- peak decade
- 49%
- more common than other boys
615 babies have been named Jac since 1915, making it today's #7305 boys' name.
According to the U.S. Social Security Administration, Jac has been recorded 615 times among boys since 1915, currently ranked #7305 nationally and more common than 49% of boys, with its heaviest use in the 1950s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1915 to 2025.
- #7305 among boys today
- 615 born since 1915
- 1950s peak decade
- 49% more common than other boys
Data updated Jun 2026
The verdict
Jac is currently the #7305 boys' name in America, more common than 49% of boys - 615 born since 1915, peaking in the 1950s.
- #7305
- among boys today
- 615
- born since 1915
- 1950s
- peak decade
- 49%
- more common than other boys
Jac vs. every other boys name in current SSA rankings
#7305
of 14,294 boys in use
More common than 49% of names given to boys today.
1950s
Peak decade
19% of everyone ever named Jac was born in this single decade.
1956
Single peak year
18 babies were named Jac in 1956 - its busiest year on record.
How Jac compares
615 Top 39% higher than 61% 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
Jac's all-time total is 68% above the median boys name, and Liam still leads by a wide margin.
| Metric | Jac | Median boys name (Elchonon) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 615 | 367 | 358,536 |
| Peak-year births | 18 | 23 | 22,252 |
Jac's usage pattern, beyond the headline number
Splitting Jac's full recorded timeline at 1970, 53% of its total births fall in the more recent half of the record versus 47% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1915, with just 5 recorded births -- worth weighing against the 1956 peak of 18 to see the full range of the name's swing in popularity.
Jac at a glance
Outside the top 1,000Peak year
1956
Current rank
#7,305
Active since
1915
Jac popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–2025
- Peak year (1956)
- 18
- Annual births at peak, across 111 years of records
Jac by decade
Total births in each ten-year window, peak vs trough at a glance
1950s was Jac's strongest decade.
117 babies received the name during that ten-year window, about 19% of all-time use.
Jac births by decade
Total births in each ten-year window
- 1910s 11
1910s
11 births
- 1920s 30
1920s
30 births
- 1930s 22
1930s
22 births
- 1940s 33
1940s
33 births
- 1950s
1950s
117 births
- 1960s
1960s
77 births
- 1970s 23
1970s
23 births
- 1980s 5
1980s
5 births
- 1990s 29
1990s
29 births
- 2000s
2000s
98 births
- 2010s
2010s
101 births
- 2020s
2020s
69 births
What this shows Peak: 1950s at 117 births (19% of all-time use).
How Jac 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 Jac's total volume
Jac vs 15 similarly-sized boys names
Frequently Asked Questions
How popular is the name Jac? ▼
615 babies have been named Jac since 1915. It currently ranks #7305 among boys. The peak year was 1956 with 18 births.
When was Jac most popular? ▼
Jac was most popular in the 1950s decade with 117 total births. The single peak year was 1956.
How long has the name Jac been used? ▼
Records for Jac go back to 1915, giving 111 years of history through 2025.
What names are similar to Jac? ▼
Names with a similar sound or spelling include Jacob, Jack, Jackson, Jace, and 4 more. These share a common prefix and are also used for boys.
What to do with Jac's data
- Jac's usage has stayed within range of its 1950s decade-level peak (117 total births) through the 2020s (69) -- a comparatively stable name, not a fading trend.
- 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 Jac
Nearby Names Like Jac
Names with a similar sound, spelling, or feel to Jac
Jacob Boy
#40 988,227 births
Jack Boy
#15 756,943 births
Jackson Boy
#35 297,220 births
Jace Boy
#114 91,544 births
Jackie Boy
#2877 78,900 births
Compare Jac side by side: Jac vs Jacob Jac vs Jack Jac vs Jackson
Related Names
Names with a similar popularity rank to Jac
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, 1915–2025 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Jac: #7305 Boys' Name - 615 Births, Peak 1956." NameAlmanac. Accessed via https://namealmanac.com/name/jac. 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 Jac 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.