The baby name Maryjo appears in baby name data for the United States from 1922 to 1997. It was most popular in 1961 with 320 babies given the name.
In the later years of this period, Maryjo has become less common than it once was.
| Year | Count |
|---|---|
| 1922 | 5 |
| 1935 | 10 |
| 1936 | 12 |
| 1937 | 33 |
| 1938 | 44 |
| 1939 | 36 |
| 1940 | 60 |
| 1941 | 57 |
| 1942 | 88 |
| 1943 | 92 |
| 1944 | 58 |
| 1945 | 77 |
| 1946 | 123 |
| 1947 | 111 |
| 1948 | 90 |
| 1949 | 129 |
| 1950 | 131 |
| 1951 | 152 |
| 1952 | 141 |
| 1953 | 176 |
| 1954 | 191 |
| 1955 | 143 |
| 1956 | 155 |
| 1957 | 223 |
| 1958 | 195 |
| 1959 | 192 |
| 1960 | 302 |
| 1961 | 320 |
| 1962 | 218 |
| 1963 | 234 |
| 1964 | 216 |
| 1965 | 133 |
| 1966 | 122 |
| 1967 | 106 |
| 1968 | 107 |
| 1969 | 106 |
| 1970 | 108 |
| 1971 | 70 |
| 1972 | 58 |
| 1973 | 35 |
| 1974 | 44 |
| 1975 | 41 |
| 1976 | 15 |
| 1977 | 45 |
| 1978 | 30 |
| 1979 | 21 |
| 1981 | 12 |
| 1983 | 5 |
| 1984 | 6 |
| 1985 | 5 |
| 1986 | 5 |
| 1987 | 11 |
| 1988 | 12 |
| 1991 | 5 |
| 1992 | 5 |
| 1997 | 6 |