Popularity in the United States (by decade)
Numbers
| Ira (masculine) | Ira (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #841 | 0.015 | #1318 | 0.010 | ||
| 2010 | #1085 | 0.009 | - | - | ||
| 2000 | #1382 | 0.005 | - | - | ||
| 1990 | #1032 | 0.006 | - | - | ||
| 1980 | #618 | 0.011 | - | - | ||
| 1970 | #459 | 0.018 | - | - | ||
| 1960 | #372 | 0.023 | - | - | ||
| 1950 | #271 | 0.034 | #1370 | 0.003 | ||
| 1940 | #217 | 0.047 | #1014 | 0.004 | ||
| 1930 | #212 | 0.054 | #857 | 0.006 | ||
| 1920 | #181 | 0.070 | #758 | 0.007 | ||
| 1910 | #152 | 0.088 | #746 | 0.008 | ||
| 1900 | #127 | 0.117 | #585 | 0.012 | ||
| 1890 | #95 | 0.156 | #580 | 0.011 | ||
| 1880 | #72 | 0.202 | #512 | 0.012 | ||
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