Popularity in the United States (by decade)
Numbers
| Clara (feminine) | Clara (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #101 | 0.149 | - | - | ||
| 2010 | #119 | 0.139 | - | - | ||
| 2000 | #254 | 0.063 | - | - | ||
| 1990 | #418 | 0.032 | - | - | ||
| 1980 | #550 | 0.020 | - | - | ||
| 1970 | #546 | 0.020 | - | - | ||
| 1960 | #369 | 0.034 | - | - | ||
| 1950 | #227 | 0.065 | - | - | ||
| 1940 | #137 | 0.134 | - | - | ||
| 1930 | #79 | 0.287 | #1513 | 0.002 | ||
| 1920 | #55 | 0.389 | #1701 | 0.002 | ||
| 1910 | #40 | 0.521 | #1560 | 0.002 | ||
| 1900 | #23 | 0.769 | #751 | 0.008 | ||
| 1890 | #11 | 1.082 | #826 | 0.006 | ||
| 1880 | #9 | 1.266 | #678 | 0.007 | ||
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