Popularity in the United States (by decade)
Numbers
| Ruth (feminine) | Ruth (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #190 | 0.087 | - | - | ||
| 2010 | #289 | 0.057 | - | - | ||
| 2000 | #344 | 0.045 | - | - | ||
| 1990 | #317 | 0.044 | - | - | ||
| 1980 | #233 | 0.061 | - | - | ||
| 1970 | #196 | 0.082 | - | - | ||
| 1960 | #117 | 0.181 | - | - | ||
| 1950 | #69 | 0.317 | - | - | ||
| 1940 | #34 | 0.575 | #1274 | 0.002 | ||
| 1930 | #14 | 0.989 | #836 | 0.005 | ||
| 1920 | #6 | 1.762 | #794 | 0.006 | ||
| 1910 | #5 | 2.041 | #815 | 0.006 | ||
| 1900 | #5 | 1.642 | #582 | 0.011 | ||
| 1890 | #6 | 1.397 | #650 | 0.009 | ||
| 1880 | #66 | 0.379 | #1400 | 0.001 | ||
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