The baby name Dorothea appears in baby name data for the United States from 1910 to 2024. It was most popular in 1920 with 1,292 babies given the name.
In the later years of this period, Dorothea has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 352 |
| 1911 | 441 |
| 1912 | 640 |
| 1913 | 743 |
| 1914 | 836 |
| 1915 | 1,123 |
| 1916 | 1,274 |
| 1917 | 1,291 |
| 1918 | 1,260 |
| 1919 | 1,196 |
| 1920 | 1,292 |
| 1921 | 1,246 |
| 1922 | 996 |
| 1923 | 1,174 |
| 1924 | 1,274 |
| 1925 | 1,248 |
| 1926 | 1,093 |
| 1927 | 965 |
| 1928 | 852 |
| 1929 | 783 |
| 1930 | 881 |
| 1931 | 569 |
| 1932 | 521 |
| 1933 | 417 |
| 1934 | 440 |
| 1935 | 419 |
| 1936 | 371 |
| 1937 | 272 |
| 1938 | 277 |
| 1939 | 315 |
| 1940 | 342 |
| 1941 | 240 |
| 1942 | 301 |
| 1943 | 300 |
| 1944 | 250 |
| 1945 | 171 |
| 1946 | 268 |
| 1947 | 308 |
| 1948 | 257 |
| 1949 | 316 |
| 1950 | 318 |
| 1951 | 286 |
| 1952 | 320 |
| 1953 | 274 |
| 1954 | 296 |
| 1955 | 321 |
| 1956 | 285 |
| 1957 | 345 |
| 1958 | 298 |
| 1959 | 295 |
| 1960 | 308 |
| 1961 | 314 |
| 1962 | 274 |
| 1963 | 248 |
| 1964 | 238 |
| 1965 | 176 |
| 1966 | 198 |
| 1967 | 143 |
| 1968 | 146 |
| 1969 | 113 |
| 1970 | 86 |
| 1971 | 68 |
| 1972 | 73 |
| 1973 | 17 |
| 1974 | 27 |
| 1975 | 31 |
| 1976 | 20 |
| 1977 | 22 |
| 1978 | 19 |
| 1979 | 12 |
| 1980 | 5 |
| 1981 | 15 |
| 1982 | 21 |
| 1983 | 10 |
| 1984 | 15 |
| 1985 | 10 |
| 1986 | 5 |
| 1988 | 31 |
| 1990 | 10 |
| 1992 | 7 |
| 1993 | 6 |
| 1998 | 9 |
| 2004 | 5 |
| 2008 | 6 |
| 2015 | 18 |
| 2018 | 21 |
| 2020 | 20 |
| 2021 | 31 |
| 2022 | 15 |
| 2023 | 36 |
| 2024 | 56 |