Popularity in the United States (by decade)
Numbers
| Karen (feminine) | Karen (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #945 | 0.016 | - | - | ||
| 2010 | #425 | 0.038 | - | - | ||
| 2000 | #170 | 0.101 | - | - | ||
| 1990 | #130 | 0.125 | - | - | ||
| 1980 | #84 | 0.189 | - | - | ||
| 1970 | #25 | 0.578 | #1445 | 0.002 | ||
| 1960 | #4 | 1.513 | #883 | 0.004 | ||
| 1950 | #8 | 1.685 | #984 | 0.003 | ||
| 1940 | #16 | 1.126 | #1011 | 0.003 | ||
| 1930 | #138 | 0.151 | - | - | ||
| 1920 | #990 | 0.005 | - | - | ||
| 1910 | #1140 | 0.004 | - | - | ||
| 1900 | #1223 | 0.003 | - | - | ||
| 1890 | #1129 | 0.003 | - | - | ||
| 1880 | #966 | 0.004 | - | - | ||
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