Popularity in the United States (by decade)
Numbers
| Isa (feminine) | Isa (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | #1279 | 0.008 | ||
| 2010 | - | - | #1556 | 0.005 | ||
| 2000 | - | - | - | - | ||
| 1990 | - | - | - | - | ||
| 1980 | - | - | - | - | ||
| 1970 | - | - | - | - | ||
| 1960 | - | - | - | - | ||
| 1950 | - | - | - | - | ||
| 1940 | - | - | - | - | ||
| 1930 | - | - | - | - | ||
| 1920 | - | - | - | - | ||
| 1910 | #1631 | 0.002 | - | - | ||
| 1900 | #1064 | 0.004 | - | - | ||
| 1890 | #837 | 0.006 | - | - | ||
| 1880 | #598 | 0.009 | - | - | ||
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