Popularity in the United States (by decade)
Numbers
| Zachary (masculine) | Zachary (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #153 | 0.130 | - | - | ||
| 2010 | #76 | 0.254 | - | - | ||
| 2000 | #27 | 0.633 | - | - | ||
| 1990 | #16 | 1.096 | - | - | ||
| 1980 | #43 | 0.529 | #1857 | 0.003 | ||
| 1970 | #141 | 0.111 | - | - | ||
| 1960 | #427 | 0.018 | - | - | ||
| 1950 | #505 | 0.011 | - | - | ||
| 1940 | #1086 | 0.003 | - | - | ||
| 1930 | #1955 | 0.001 | - | - | ||
| 1920 | #1970 | 0.001 | - | - | ||
| 1910 | #1988 | 0.002 | - | - | ||
| 1900 | - | - | - | - | ||
| 1890 | - | - | - | - | ||
| 1880 | - | - | - | - | ||
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