Marilou: Statistics About The Baby Name Marilou
| Year | Boy Rank | # Boys | % Boys | Girl Rank | # Girls | % Girls |
| 1949 | * | * | * | 962 | 87 | 0.0050% |
| 1948 | * | * | * | 921 | 89 | 0.0051% |
| 1945 | * | * | * | 874 | 75 | 0.0056% |
| 1944 | * | * | * | 873 | 77 | 0.0056% |
| 1942 | * | * | * | 923 | 72 | 0.0052% |
| 1941 | * | * | * | 954 | 60 | 0.0048% |
| 1940 | * | * | * | 922 | 61 | 0.0052% |
| 1938 | * | * | * | 961 | 55 | 0.0048% |
| 1937 | * | * | * | 852 | 66 | 0.0060% |
| 1936 | * | * | * | 976 | 50 | 0.0046% |
| 1935 | * | * | * | 890 | 61 | 0.0056% |
| 1934 | * | * | * | 780 | 75 | 0.0069% |
| 1933 | * | * | * | 776 | 73 | 0.0070% |
| 1932 | * | * | * | 858 | 66 | 0.0060% |
| 1931 | * | * | * | 989 | 50 | 0.0045% |
| 1930 | * | * | * | 793 | 80 | 0.0069% |
| 1929 | * | * | * | 905 | 63 | 0.0054% |
| 1928 | * | * | * | 877 | 70 | 0.0059% |
| 1927 | * | * | * | 813 | 81 | 0.0066% |
| * No data shown indicates the name was not among the top 1000 most popular names for that year. | ||||||