The baby name Lonna appears in baby name data for the United States from 1940 to 1978. It was most popular in 1964 with 53 babies given the name.
In the later years of this period, Lonna has become less common than it once was.
| Year | Count |
|---|---|
| 1940 | 29 |
| 1941 | 46 |
| 1943 | 14 |
| 1944 | 15 |
| 1945 | 29 |
| 1946 | 26 |
| 1947 | 23 |
| 1948 | 22 |
| 1949 | 19 |
| 1950 | 40 |
| 1951 | 32 |
| 1952 | 23 |
| 1953 | 27 |
| 1954 | 10 |
| 1955 | 15 |
| 1956 | 29 |
| 1957 | 10 |
| 1958 | 10 |
| 1959 | 33 |
| 1960 | 30 |
| 1961 | 26 |
| 1962 | 36 |
| 1963 | 51 |
| 1964 | 53 |
| 1965 | 10 |
| 1966 | 23 |
| 1967 | 28 |
| 1968 | 14 |
| 1969 | 14 |
| 1970 | 5 |
| 1971 | 16 |
| 1972 | 5 |
| 1973 | 18 |
| 1978 | 6 |