Boys' name · peaked in 1891
Jefferson name popularity since 1925
21,699 babies born in the US from 1925 to 2025 were named Jefferson. Half of them were born in 1992 or earlier, so the typical Jefferson is about 34 years old in 2026. Jefferson peaked in 1891 as the #253 name for boys, and it ranked #831 in 2025.
Key facts
- US babies since 1925
- 21,699
- Named Jefferson, 1925–2025
- Peak year
- 1891
- #253 for boys that year
- In 2025
- #831
- for boys in 2025 (298 babies)
- Girls / boys
- 100.0% boys
- 0 girls · 21,699 boys
- Most popular in
- Maryland
- 2.53× its national share
Peak year is the year Jefferson 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.
Jefferson births per year, 1925–2025
The biggest year on this chart was 2009. Measured as a share of all babies, Jefferson peaked earlier, in 1891.
- Steepest fall: Between 1973 and 1978, Jefferson's share of baby boys fell by 45%, from 1 in 5,470 to 1 in 10,000.
- Fastest rise: Between 2003 and 2008, it became 1.6× more common, from 1 in 7,930 baby boys to 1 in 4,870.
Shaded on the chart. Both compare Jefferson's share of all US boys five years apart, counting only years with at least 100 babies named Jefferson.
Decade by decade
Babies named Jefferson in each decade, and its rank among boys' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Boys | Rank |
|---|---|---|
| 1925–29 | 617 | – |
| 1930s | 908 | #578 |
| 1940s | 1,142 | #595 |
| 1950s | 1,738 | #522 |
| 1960s | 2,017 | #585 |
| 1970s | 2,165 | #614 |
| 1980s | 1,638 | #682 |
| 1990s | 2,359 | #682 |
| 2000s | 3,268 | #630 |
| 2010s | 3,789 | #672 |
| 2020–25 | 2,058 | #831 |
Ranks count every name given to at least 5 boys that year, so they can go past 1,000.
Generation fingerprint
23.5% of babies named Jefferson from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Jefferson is most popular
The index compares Jefferson'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 Jefferson.
| State | Index | Babies |
|---|---|---|
| Maryland | 2.53× | 648 |
| Georgia | 2.51× | 1,163 |
| Virginia | 2.51× | 947 |
| South Carolina | 2.20× | 517 |
| Florida | 2.14× | 1,294 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Jefferson's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Jefferson.
Names from the same era
Other common names that peaked within two years of Jefferson (1891).
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