Popularity in the United States (by decade)
Numbers
| Betty (feminine) | Betty (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #1186 | 0.011 | - | - | ||
| 2010 | #1353 | 0.009 | - | - | ||
| 2000 | #1479 | 0.007 | - | - | ||
| 1990 | #794 | 0.013 | - | - | ||
| 1980 | #433 | 0.028 | - | - | ||
| 1970 | #227 | 0.071 | - | - | ||
| 1960 | #102 | 0.203 | #1953 | 0.001 | ||
| 1950 | #35 | 0.523 | #1376 | 0.002 | ||
| 1940 | #11 | 1.307 | #755 | 0.005 | ||
| 1930 | #2 | 2.719 | #476 | 0.013 | ||
| 1920 | #4 | 2.283 | #752 | 0.007 | ||
| 1910 | #37 | 0.528 | - | - | ||
| 1900 | #86 | 0.255 | #1373 | 0.002 | ||
| 1890 | #136 | 0.136 | - | - | ||
| 1880 | #145 | 0.109 | - | - | ||
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