Popularity in the United States (by decade)
Numbers
| Betty (masculine) | Betty (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | - | - | #1184 | 0.011 | ||
| 2010 | - | - | #1352 | 0.009 | ||
| 2000 | - | - | #1475 | 0.007 | ||
| 1990 | - | - | #794 | 0.013 | ||
| 1980 | - | - | #433 | 0.028 | ||
| 1970 | - | - | #227 | 0.071 | ||
| 1960 | #1953 | 0.001 | #102 | 0.203 | ||
| 1950 | #1376 | 0.002 | #35 | 0.523 | ||
| 1940 | #755 | 0.005 | #11 | 1.307 | ||
| 1930 | #476 | 0.013 | #2 | 2.719 | ||
| 1920 | #752 | 0.007 | #4 | 2.283 | ||
| 1910 | - | - | #37 | 0.528 | ||
| 1900 | #1373 | 0.002 | #86 | 0.255 | ||
| 1890 | - | - | #136 | 0.136 | ||
| 1880 | - | - | #145 | 0.109 | ||
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