The baby name Nilsa appears in baby name data for the United States from 1946 to 1994. It was most popular in 1960 with 118 babies given the name.
Over the period shown, Nilsa has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1946 | 5 |
| 1948 | 6 |
| 1949 | 10 |
| 1950 | 16 |
| 1951 | 24 |
| 1952 | 16 |
| 1953 | 40 |
| 1954 | 29 |
| 1955 | 30 |
| 1956 | 34 |
| 1957 | 102 |
| 1958 | 104 |
| 1959 | 106 |
| 1960 | 118 |
| 1961 | 98 |
| 1962 | 5 |
| 1963 | 73 |
| 1964 | 45 |
| 1965 | 51 |
| 1966 | 62 |
| 1967 | 43 |
| 1968 | 35 |
| 1969 | 39 |
| 1970 | 41 |
| 1971 | 50 |
| 1972 | 33 |
| 1973 | 22 |
| 1974 | 19 |
| 1975 | 14 |
| 1976 | 15 |
| 1977 | 37 |
| 1978 | 24 |
| 1979 | 43 |
| 1981 | 8 |
| 1982 | 11 |
| 1983 | 5 |
| 1984 | 8 |
| 1986 | 6 |
| 1991 | 6 |
| 1994 | 5 |