Popularity in the United States (by decade)
Numbers
| Keegan (masculine) | Keegan (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #539 | 0.029 | - | - | ||
| 2010 | #284 | 0.063 | #1792 | 0.006 | ||
| 2000 | #242 | 0.066 | #1609 | 0.006 | ||
| 1990 | #372 | 0.032 | - | - | ||
| 1980 | #684 | 0.009 | - | - | ||
| 1970 | #1570 | 0.002 | - | - | ||
| 1960 | - | - | - | - | ||
| 1950 | - | - | - | - | ||
| 1940 | - | - | - | - | ||
| 1930 | - | - | - | - | ||
| 1920 | - | - | - | - | ||
| 1910 | - | - | - | - | ||
| 1900 | - | - | - | - | ||
| 1890 | - | - | - | - | ||
| 1880 | - | - | - | - | ||
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