Girls' name · peaked in 2011
Lilly name popularity since 1925
59,612 babies born in the US from 1925 to 2025 were named Lilly. Half of them were born in 2010 or earlier, so the typical Lilly is about 16 years old in 2026. Lilly peaked in 2011 as the #103 name for girls, and it ranked #252 in 2025.
Key facts
- US babies since 1925
- 59,612
- Named Lilly, 1925–2025
- In 2025
- #252
- for girls in 2025 (1,218 babies)
- Girls / boys
- 100.0% girls
- 59,588 girls · 24 boys
- Most popular in
- Nevada
- 1.96× its national share
Peak year is the year Lilly 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.
Lilly births per year, 1925–2025
The biggest year by count was 2010. Measured as a share of all babies, Lilly peaked in 2011.
- Steepest fall: Between 1938 and 1943, Lilly's share of baby girls fell by 46%, from 1 in 4,900 to 1 in 9,120.
- Fastest rise: Between 1994 and 1999, it became 3.6× more common, from 1 in 13,200 baby girls to 1 in 3,630.
Shaded on the chart. Both compare Lilly's share of all US girls five years apart, counting only years with at least 100 babies named Lilly.
Decade by decade
Babies named Lilly 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 | 1,395 | 0 | – |
| 1930s | 2,034 | 0 | #512 |
| 1940s | 1,596 | 0 | #615 |
| 1950s | 1,416 | 0 | #822 |
| 1960s | 1,134 | 0 | #928 |
| 1970s | 630 | 0 | #1,663 |
| 1980s | 714 | 0 | #1,625 |
| 1990s | 2,270 | 0 | #909 |
| 2000s | 17,271 | 24 | #180 |
| 2010s | 23,527 | 0 | #139 |
| 2020–25 | 7,601 | 0 | #252 |
Ranks count every name given to at least 5 girls that year, so they can go past 1,000.
Generation fingerprint
45.4% of babies named Lilly from 1925 to 2025 were born in the Gen Z years (1997–2012). The full split by generation:
Where Lilly is most popular
The index compares Lilly'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 Lilly.
| State | Index | Babies |
|---|---|---|
| Nevada | 1.96× | 394 |
| Utah | 1.88× | 900 |
| Idaho | 1.83× | 411 |
| Arizona | 1.77× | 1,289 |
| New Mexico | 1.68× | 522 |
Other spellings
Spellings that sound like Lilly 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 |
|---|---|---|
| Lilly (this page) | 59,588 | 2011 |
| Lily | 182,107 | 2011 |
| Lillie | 79,821 | 1882 |
| Lili | 3,828 | 2003 |
| Lilli | 3,372 | 2006 |
| Lillee | 1,085 | 2010 |
Names with a similar story
Of the other 1999 names on this site, these six had the share of babies closest in shape to Lilly's from 1925 to 2025, however common each one got. Each line is scaled to its own high; the dashed line is Lilly.
Names from the same era
Other common names that peaked within two years of Lilly (2011).
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