The baby name Aletha appears in baby name data for the United States from 1912 to 1986. It was most popular in 1923 with 148 babies given the name.
In the later years of this period, Aletha has become less common than it once was.
| Year | Count |
|---|---|
| 1912 | 15 |
| 1913 | 36 |
| 1914 | 19 |
| 1915 | 69 |
| 1916 | 91 |
| 1917 | 61 |
| 1918 | 96 |
| 1919 | 96 |
| 1920 | 110 |
| 1921 | 105 |
| 1922 | 127 |
| 1923 | 148 |
| 1924 | 135 |
| 1925 | 97 |
| 1926 | 70 |
| 1927 | 54 |
| 1928 | 20 |
| 1929 | 33 |
| 1930 | 34 |
| 1931 | 46 |
| 1932 | 38 |
| 1933 | 30 |
| 1934 | 34 |
| 1935 | 35 |
| 1936 | 5 |
| 1937 | 29 |
| 1938 | 19 |
| 1939 | 31 |
| 1942 | 6 |
| 1943 | 10 |
| 1945 | 10 |
| 1946 | 10 |
| 1948 | 11 |
| 1949 | 17 |
| 1950 | 5 |
| 1951 | 18 |
| 1952 | 38 |
| 1953 | 29 |
| 1954 | 45 |
| 1955 | 58 |
| 1956 | 22 |
| 1957 | 53 |
| 1958 | 61 |
| 1959 | 42 |
| 1960 | 41 |
| 1961 | 46 |
| 1962 | 51 |
| 1963 | 54 |
| 1964 | 26 |
| 1965 | 56 |
| 1966 | 58 |
| 1967 | 37 |
| 1968 | 61 |
| 1969 | 28 |
| 1970 | 31 |
| 1971 | 30 |
| 1972 | 31 |
| 1973 | 26 |
| 1974 | 19 |
| 1975 | 28 |
| 1976 | 6 |
| 1977 | 27 |
| 1978 | 6 |
| 1980 | 7 |
| 1981 | 7 |
| 1982 | 5 |
| 1983 | 10 |
| 1984 | 6 |
| 1986 | 6 |