Popularity in the United States (by decade)
Numbers
| Sylvester (masculine) | Sylvester (feminine) | |||||
| 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 | #293 | 0.030 | - | - | ||
| 1940 | #269 | 0.035 | - | - | ||
| 1930 | #231 | 0.047 | - | - | ||
| 1920 | #202 | 0.060 | - | - | ||
| 1910 | #168 | 0.078 | - | - | ||
| 1900 | #150 | 0.092 | #1520 | 0.002 | ||
| 1890 | #153 | 0.079 | #1859 | 0.001 | ||
| 1880 | #169 | 0.068 | - | - | ||
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