Popularity in the United States (by decade)
Numbers
| Monica (feminine) | Monica (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #699 | 0.023 | - | - | ||
| 2010 | #514 | 0.032 | - | - | ||
| 2000 | #221 | 0.072 | - | - | ||
| 1990 | #90 | 0.198 | - | - | ||
| 1980 | #57 | 0.281 | #1812 | 0.002 | ||
| 1970 | #45 | 0.375 | #1576 | 0.002 | ||
| 1960 | #86 | 0.239 | - | - | ||
| 1950 | #180 | 0.095 | - | - | ||
| 1940 | #339 | 0.031 | - | - | ||
| 1930 | #424 | 0.022 | - | - | ||
| 1920 | #482 | 0.017 | - | - | ||
| 1910 | #421 | 0.020 | - | - | ||
| 1900 | #472 | 0.016 | - | - | ||
| 1890 | #551 | 0.012 | - | - | ||
| 1880 | #727 | 0.006 | - | - | ||
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