Popularity in the United States (by decade)
Numbers
| Willard (feminine) | Willard (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | - | - | ||
| 2010 | - | - | - | - | ||
| 2000 | - | - | - | - | ||
| 1990 | - | - | #1375 | 0.004 | ||
| 1980 | - | - | #836 | 0.006 | ||
| 1970 | - | - | #540 | 0.013 | ||
| 1960 | - | - | #382 | 0.022 | ||
| 1950 | - | - | #270 | 0.034 | ||
| 1940 | - | - | #172 | 0.070 | ||
| 1930 | - | - | #131 | 0.115 | ||
| 1920 | #1685 | 0.002 | #97 | 0.162 | ||
| 1910 | #1206 | 0.003 | #83 | 0.221 | ||
| 1900 | #1408 | 0.003 | #119 | 0.124 | ||
| 1890 | - | - | #130 | 0.101 | ||
| 1880 | - | - | #144 | 0.080 | ||
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