Popularity in the United States (by decade)
Numbers
| Allen (feminine) | Allen (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | #517 | 0.031 | ||
| 2010 | - | - | #367 | 0.044 | ||
| 2000 | - | - | #264 | 0.059 | ||
| 1990 | - | - | #186 | 0.082 | ||
| 1980 | - | - | #127 | 0.114 | ||
| 1970 | - | - | #130 | 0.127 | ||
| 1960 | - | - | #97 | 0.192 | ||
| 1950 | - | - | #84 | 0.231 | ||
| 1940 | #1906 | 0.001 | #74 | 0.258 | ||
| 1930 | #1696 | 0.002 | #79 | 0.224 | ||
| 1920 | #1669 | 0.002 | #95 | 0.177 | ||
| 1910 | #1619 | 0.002 | #99 | 0.165 | ||
| 1900 | - | - | #91 | 0.174 | ||
| 1890 | - | - | #92 | 0.163 | ||
| 1880 | - | - | #85 | 0.170 | ||
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