Popularity in the United States (by decade)
Numbers
| Kelsey (feminine) | Kelsey (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #566 | 0.029 | - | - | ||
| 2010 | #324 | 0.052 | - | - | ||
| 2000 | #142 | 0.115 | - | - | ||
| 1990 | #33 | 0.433 | #908 | 0.007 | ||
| 1980 | #104 | 0.150 | #755 | 0.007 | ||
| 1970 | #1114 | 0.007 | #910 | 0.005 | ||
| 1960 | - | - | #1634 | 0.001 | ||
| 1950 | - | - | #1968 | 0.001 | ||
| 1940 | - | - | - | - | ||
| 1930 | - | - | - | - | ||
| 1920 | - | - | - | - | ||
| 1910 | - | - | - | - | ||
| 1900 | - | - | - | - | ||
| 1890 | - | - | - | - | ||
| 1880 | - | - | - | - | ||
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