Popularity in the United States (by decade)
Numbers
| Kasey (feminine) | Kasey (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #1491 | 0.008 | #1381 | 0.007 | ||
| 2010 | #1074 | 0.012 | #1409 | 0.006 | ||
| 2000 | #565 | 0.026 | #777 | 0.012 | ||
| 1990 | #243 | 0.058 | #553 | 0.017 | ||
| 1980 | #265 | 0.053 | #508 | 0.016 | ||
| 1970 | #551 | 0.020 | #751 | 0.007 | ||
| 1960 | #1642 | 0.003 | #1571 | 0.001 | ||
| 1950 | - | - | - | - | ||
| 1940 | - | - | - | - | ||
| 1930 | - | - | - | - | ||
| 1920 | - | - | - | - | ||
| 1910 | - | - | - | - | ||
| 1900 | - | - | - | - | ||
| 1890 | - | - | - | - | ||
| 1880 | - | - | - | - | ||
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