Popularity in the United States (by decade)
Numbers
| Phyllis (feminine) | Phyllis (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | - | - | ||
| 2010 | - | - | - | - | ||
| 2000 | - | - | - | - | ||
| 1990 | - | - | - | - | ||
| 1980 | #1058 | 0.008 | - | - | ||
| 1970 | #496 | 0.023 | - | - | ||
| 1960 | #149 | 0.136 | - | - | ||
| 1950 | #75 | 0.293 | - | - | ||
| 1940 | #38 | 0.511 | #1439 | 0.002 | ||
| 1930 | #27 | 0.668 | #1337 | 0.002 | ||
| 1920 | #42 | 0.499 | - | - | ||
| 1910 | #99 | 0.210 | - | - | ||
| 1900 | #221 | 0.065 | - | - | ||
| 1890 | #357 | 0.027 | - | - | ||
| 1880 | #545 | 0.011 | - | - | ||
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