Popularity in the United States (by decade)
Numbers
| Sylvester (feminine) | Sylvester (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | - | - | ||
| 2010 | - | - | - | - | ||
| 2000 | - | - | #1780 | 0.003 | ||
| 1990 | - | - | #1010 | 0.006 | ||
| 1980 | - | - | #628 | 0.010 | ||
| 1970 | - | - | #537 | 0.013 | ||
| 1960 | - | - | #404 | 0.020 | ||
| 1950 | - | - | #292 | 0.030 | ||
| 1940 | - | - | #269 | 0.035 | ||
| 1930 | - | - | #231 | 0.047 | ||
| 1920 | - | - | #202 | 0.060 | ||
| 1910 | - | - | #168 | 0.078 | ||
| 1900 | #1520 | 0.002 | #150 | 0.092 | ||
| 1890 | #1859 | 0.001 | #153 | 0.079 | ||
| 1880 | - | - | #169 | 0.068 | ||
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