The baby name Mirta appears in baby name data for the United States from 1952 to 1984. It was most popular in 1961 with 50 babies given the name.
In the later years of this period, Mirta has become less common than it once was.
| Year | Count |
|---|---|
| 1952 | 5 |
| 1953 | 7 |
| 1955 | 7 |
| 1956 | 14 |
| 1957 | 10 |
| 1958 | 29 |
| 1961 | 50 |
| 1962 | 7 |
| 1963 | 8 |
| 1964 | 7 |
| 1965 | 6 |
| 1966 | 8 |
| 1967 | 18 |
| 1968 | 14 |
| 1970 | 11 |
| 1971 | 11 |
| 1972 | 15 |
| 1973 | 8 |
| 1974 | 7 |
| 1975 | 11 |
| 1976 | 10 |
| 1977 | 5 |
| 1978 | 7 |
| 1979 | 6 |
| 1981 | 5 |
| 1984 | 6 |