Girls' name · peaked in 1946
Rosemary name popularity since 1925
144,449 babies born in the US from 1925 to 2025 were named Rosemary. Half of them were born in 1949 or earlier, so the typical Rosemary is about 77 years old in 2026. Rosemary peaked in 1946 as the #74 name for girls, and it ranked #251 in 2025.
Key facts
- US babies since 1925
- 144,449
- Named Rosemary, 1925–2025
- In 2025
- #251
- for girls in 2025 (1,222 babies)
- Girls / boys
- 99.8% girls
- 144,101 girls · 348 boys
- Most popular in
- New York
- 1.67× its national share
Peak year is the year Rosemary made up the largest share of US girls, in records going back to 1880. Typical age is based on births from 1925 on, not on who is living today.
Rosemary births per year, 1925–2025
The biggest year by count was 1947. Measured as a share of all babies, Rosemary peaked in 1946.
- Steepest fall: Between 1950 and 1955, Rosemary's share of baby girls fell by 49%, from 1 in 496 to 1 in 970.
- Fastest rise: Between 2020 and 2025, it became 1.8× more common, from 1 in 2,320 baby girls to 1 in 1,320.
Shaded on the chart. Both compare Rosemary's share of all US girls five years apart, counting only years with at least 100 babies named Rosemary.
Decade by decade
Babies named Rosemary in each decade, and its rank among girls' names in the middle year of the decade (1935, 1945 … 2025).
| Decade | Girls | Boys | Rank |
|---|---|---|---|
| 1925–29 | 14,887 | 45 | – |
| 1930s | 24,857 | 84 | #97 |
| 1940s | 34,297 | 85 | #79 |
| 1950s | 25,020 | 48 | #171 |
| 1960s | 14,604 | 48 | #241 |
| 1970s | 5,823 | 12 | #384 |
| 1980s | 4,989 | 21 | #431 |
| 1990s | 4,051 | 5 | #571 |
| 2000s | 3,961 | 0 | #745 |
| 2010s | 5,930 | 0 | #517 |
| 2020–25 | 5,682 | 0 | #251 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
35.5% of babies named Rosemary from 1925 to 2025 were born in the Baby Boom years (1946–1964). The full split by generation:
Where Rosemary is most popular
The index compares Rosemary'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 Rosemary.
| State | Index | Babies |
|---|---|---|
| New York | 1.67× | 18,075 |
| Illinois | 1.57× | 10,886 |
| Pennsylvania | 1.56× | 11,311 |
| Wisconsin | 1.54× | 4,317 |
| Connecticut | 1.50× | 2,314 |
Other spellings
Spellings that sound like Rosemary and were given to at least 1,000 girls from 1925 to 2025, with the year each one was most popular.
| Spelling | Girls | Peak year |
|---|---|---|
| Rosemary (this page) | 144,101 | 1946 |
| Rosemarie | 49,426 | 1936 |
Names with a similar story
Of the other 499 names on this site, these six had the share of babies closest in shape to Rosemary's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Rosemary.
Names from the same era
Other common names that peaked within two years of Rosemary (1946).
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