Boys' name · peaked in 1927
Jack name popularity since 1925
638,589 babies born in the US from 1925 to 2025 were named Jack. Half of them were born in 1965 or earlier, so the typical Jack is about 61 years old in 2026. Jack peaked in 1927 as the #16 name for boys, and it ranked #15 in 2025.
Key facts
- US babies since 1925
- 638,589
- Named Jack, 1925–2025
- Peak year
- 1927
- #16 for boys that year
- In 2025
- #15
- for boys in 2025 (8,748 babies)
- Girls / boys
- 99.7% boys
- 2,027 girls · 636,562 boys
- Most popular in
- Wyoming
- 1.91× its national share
Peak year is the year Jack made up the largest share of US boys, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Jack births per year, 1925–2025
1927 was the biggest year for Jack both by count and as a share of all babies.
- Steepest fall: Between 1936 and 1941, Jack's share of baby boys fell by 34%, from 1 in 117 to 1 in 177.
- Fastest rise: Between 1993 and 1998, it became 2.7× more common, from 1 in 809 baby boys to 1 in 300.
Shaded on the chart. Both compare Jack's share of all US boys five years apart, counting only years with at least 100 babies named Jack.
Decade by decade
Babies named Jack in each decade, and its rank among boys' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 438 | 61,669 | – |
| 1930s | 477 | 96,396 | #18 |
| 1940s | 210 | 73,919 | #32 |
| 1950s | 148 | 62,387 | #60 |
| 1960s | 147 | 35,593 | #104 |
| 1970s | 132 | 18,562 | #142 |
| 1980s | 116 | 15,944 | #176 |
| 1990s | 60 | 37,501 | #110 |
| 2000s | 149 | 95,512 | #34 |
| 2010s | 86 | 85,695 | #40 |
| 2020–25 | 64 | 53,384 | #15 |
Ranks count every name given to at least 5 boys that year, so they can go past 1,000.
Generation fingerprint
25.8% of babies named Jack from 1925 to 2025 were born in the Silent Generation years (1928–1945). The full split by generation:
Where Jack is most popular
The index compares Jack's share of babies in each state with its share nationwide, 1925–2025 (1.50× = 50% more common). States with at least 300 babies named Jack.
| State | Index | Babies |
|---|---|---|
| Wyoming | 1.91× | 1,661 |
| Montana | 1.66× | 3,124 |
| Idaho | 1.51× | 3,866 |
| Nebraska | 1.51× | 6,810 |
| Oklahoma | 1.49× | 12,528 |
Names with a similar story
Of the other 499 names on this site, these six had the share of babies closest in shape to Jack's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Jack.
Names from the same era
Other common names that peaked within two years of Jack (1927).
Source: U.S. Social Security Administration national and state baby-name data, which covers names given to at least 5 babies of one sex in a year. About the data