Popularity in the United States (by decade)
Numbers
| Kenneth (masculine) | Kenneth (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #251 | 0.074 | - | - | ||
| 2010 | #195 | 0.100 | - | - | ||
| 2000 | #121 | 0.160 | - | - | ||
| 1990 | #66 | 0.283 | - | - | ||
| 1980 | #46 | 0.463 | #1655 | 0.004 | ||
| 1970 | #31 | 0.652 | #1426 | 0.005 | ||
| 1960 | #21 | 1.160 | #1069 | 0.005 | ||
| 1950 | #16 | 1.281 | #1197 | 0.004 | ||
| 1940 | #16 | 1.310 | #1146 | 0.004 | ||
| 1930 | #15 | 1.153 | #991 | 0.005 | ||
| 1920 | #19 | 0.875 | #978 | 0.005 | ||
| 1910 | #30 | 0.622 | #1468 | 0.002 | ||
| 1900 | #53 | 0.312 | - | - | ||
| 1890 | #125 | 0.105 | - | - | ||
| 1880 | #283 | 0.031 | - | - | ||
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