Popularity in the United States (by decade)
Numbers
| Thomas (masculine) | Thomas (feminine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2020 | #45 | 0.353 | - | - | ||
| 2010 | #49 | 0.348 | - | - | ||
| 2000 | #37 | 0.480 | - | - | ||
| 1990 | #26 | 0.713 | - | - | ||
| 1980 | #24 | 0.924 | #1226 | 0.006 | ||
| 1970 | #20 | 1.092 | #1107 | 0.007 | ||
| 1960 | #9 | 1.668 | #978 | 0.006 | ||
| 1950 | #8 | 2.214 | #1031 | 0.005 | ||
| 1940 | #8 | 2.314 | #818 | 0.006 | ||
| 1930 | #9 | 1.694 | #751 | 0.008 | ||
| 1920 | #11 | 1.417 | #747 | 0.008 | ||
| 1910 | #10 | 1.319 | #900 | 0.005 | ||
| 1900 | #10 | 1.484 | #972 | 0.005 | ||
| 1890 | #12 | 1.715 | #910 | 0.005 | ||
| 1880 | #10 | 2.018 | #723 | 0.007 | ||
 |
|
|||||