⚖️ Head-to-Head Demographic Comparison
Jack vs Leo
Direct statistical comparison between Jack and Leo based on official U.S. Social Security Administration (1880–2024) records and Decennial Census data.
Statistical Scorecard
SSA 1880–2024 Series| Metric | Jack | Leo |
|---|---|---|
| National All-Time Rank | #216 | #320 |
| Estimated Living Population | ~10,235 | ~6,329 |
| Total SSA Historical Births | 11,425 | 7,305 |
| Peak Popularity Year | 1986 (234 births) | 2000 (129 births) |
| Estimated Average Age | 35.2 years | 34.3 years |
| 2020 Decennial Census Count | 9,375 | 4,301 |
Key Differences & Trajectory
While Jack peaked in 1986, Leo reached its registered zenith in 2000. Currently, Jack holds the higher cumulative historical ranking in United States vital statistics records.
Comparison Data Provenance
Social Security Administration Baby Names (1880–2024)Official Link ↗
U.S. Social Security Administration · 145-year continuous birth registry records
Actuarial Life Tables (Cohort Survival Probabilities)Official Link ↗
National Center for Health Statistics (CDC) · Life expectancy and mortality models
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