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.
- #6,954 of 45,481
- all-time among boys
- #5,906 of 13,930
- 2025 SSA year
- 615
- born since 1915
- 1950s
- peak decade
615 babies have been named Jac since 1915, making it today's #5906 boys' name.
According to the U.S. Social Security Administration, Jac has been recorded 615 times among boys since 1915, currently ranked #5906 nationally and more common than 58% 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.
- #6,954 of 45,481 all-time among boys
- #5,906 of 13,930 2025 SSA year
- 615 born since 1915
- 1950s peak decade
Data updated Aug 2026
The verdict
According to the U.S. Social Security Administration, Jac ranks #6,954 of 45,481 boys' names by all-time recorded births (highest first) and #5,906 of 13,930 among boys' names in 2025. 615 born since 1915, peaking in the 1950s.
- #6,954 of 45,481
- all-time among boys
- #5,906 of 13,930
- 2025 SSA year
- 615
- born since 1915
- 1950s
- peak decade
Jac's 615 recorded births place it above 84.69% of the 45,481 boys names in the full SSA archive.
No state rows cleared SSA’s public reporting threshold for this name.
How Jac compares
615 Top 40% higher than 60% of 13,930 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 67% above the median boys name, and Liam still leads by a wide margin.
| Metric | Jac | Median boys name (Takari) | #1 boys name (Liam) |
|---|---|---|---|
| All-time total births | 615 | 369 | 358,536 |
| Peak-year births | 18 | 34 | 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 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
1950s is the heaviest window (117 births, 19% of the file).
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
Frequently Asked Questions
How popular is the name Jac? ▼
Where does Jac sit in the SSA name archive? ▼
When was Jac most popular? ▼
How long has the name Jac been used? ▼
What names are similar to Jac? ▼
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.
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
Compare Jac side by side: Jac vs Jacob Jac vs Jack Jac vs Jackson
Related Names
Names with a similar popularity rank to Jac
Nationwide names with similar peak year or record span
Two nationwide peer axes for Jac: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.
Similar peak year (~1956)
Similar record span (~110 yrs)
Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.
Data Sources
Data as of August 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).
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 August 2026.