Popularity in the United States (by decade)
Numbers
| Sydney (feminine) | Sydney (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #265 | 0.065 | - | - | ||
| 2010 | #108 | 0.146 | - | - | ||
| 2000 | #28 | 0.376 | #1613 | 0.004 | ||
| 1990 | #59 | 0.284 | #1149 | 0.005 | ||
| 1980 | #473 | 0.025 | #1484 | 0.002 | ||
| 1970 | #1250 | 0.006 | #1495 | 0.002 | ||
| 1960 | #902 | 0.007 | #1080 | 0.003 | ||
| 1950 | #782 | 0.008 | #927 | 0.003 | ||
| 1940 | #623 | 0.010 | #721 | 0.005 | ||
| 1930 | #765 | 0.007 | #655 | 0.008 | ||
| 1920 | #1460 | 0.002 | #536 | 0.012 | ||
| 1910 | #1239 | 0.003 | #398 | 0.021 | ||
| 1900 | #1349 | 0.003 | #494 | 0.015 | ||
| 1890 | #1784 | 0.001 | #495 | 0.013 | ||
| 1880 | #1424 | 0.001 | #505 | 0.012 | ||
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