Popularity in the United States (by decade)
Numbers
| Sidney (masculine) | Sidney (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #1232 | 0.008 | #1457 | 0.008 | ||
| 2010 | #1021 | 0.010 | #938 | 0.015 | ||
| 2000 | #729 | 0.013 | #379 | 0.041 | ||
| 1990 | #528 | 0.019 | #382 | 0.035 | ||
| 1980 | #488 | 0.017 | #1568 | 0.004 | ||
| 1970 | #409 | 0.022 | - | - | ||
| 1960 | #295 | 0.035 | #1510 | 0.003 | ||
| 1950 | #232 | 0.047 | #1074 | 0.005 | ||
| 1940 | #182 | 0.063 | #826 | 0.006 | ||
| 1930 | #158 | 0.087 | #830 | 0.006 | ||
| 1920 | #125 | 0.125 | #985 | 0.005 | ||
| 1910 | #91 | 0.184 | #913 | 0.005 | ||
| 1900 | #110 | 0.135 | #828 | 0.006 | ||
| 1890 | #110 | 0.131 | #747 | 0.007 | ||
| 1880 | #99 | 0.128 | #639 | 0.008 | ||
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