Popularity in the United States (by decade)
Numbers
| Lillie (feminine) | Lillie (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #742 | 0.021 | - | - | ||
| 2010 | #552 | 0.029 | - | - | ||
| 2000 | #560 | 0.026 | - | - | ||
| 1990 | #1146 | 0.008 | - | - | ||
| 1980 | #1329 | 0.005 | - | - | ||
| 1970 | #936 | 0.009 | - | - | ||
| 1960 | #485 | 0.020 | - | - | ||
| 1950 | #278 | 0.049 | - | - | ||
| 1940 | #168 | 0.103 | - | - | ||
| 1930 | #123 | 0.180 | #1527 | 0.002 | ||
| 1920 | #96 | 0.237 | #1724 | 0.002 | ||
| 1910 | #73 | 0.290 | #1856 | 0.002 | ||
| 1900 | #50 | 0.495 | #954 | 0.005 | ||
| 1890 | #41 | 0.599 | #805 | 0.006 | ||
| 1880 | #39 | 0.676 | #924 | 0.003 | ||
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